Download "Why Is The Universe Designed So PERFECTLY- Maybe it Was Crea..."
%3Aformat(webp)%2Fi.ytimg.com%252Fvi%252FA6-yWgVikdI%252Fmaxresdefault.jpg&w=1139&q=75)
Please wait. We're preparing links for easy ad-free video watching and downloading.
Similar videos from our catalog
%3Aformat(webp)%2Fi.ytimg.com%252Fvi%252FTT83aKCKYOc%252Fmaxresdefault.jpg&w=1139&q=75)
%3Aformat(webp)%2Fi.ytimg.com%252Fvi_webp%252F_pKapNKJsU8%252Fmaxresdefault.webp&w=1139&q=75)
%3Aformat(webp)%2Fi.ytimg.com%252Fvi%252FkedUh_BA-hU%252Fsddefault.jpg&w=1139&q=75)
%3Aformat(webp)%2Fi.ytimg.com%252Fvi%252FsiX1pLhRXuM%252Fmaxresdefault.jpg&w=1139&q=75)
%3Aformat(webp)%2Fi.ytimg.com%252Fvi%252FCfjNMLgax2s%252Fmaxresdefault.jpg&w=1139&q=75)
Video tags
Subtitles
Russian
00:00:02
the universe is a vast and mysterious00:00:04
place that has been the subject of human00:00:06
curiosity for thousands of years00:00:09
from the ancient Greeks to Modern00:00:10
astrophysicists we have been searching00:00:12
for answers to the biggest questions00:00:14
about our Cosmos what is the universe00:00:16
made of how did it begin and what is its00:00:18
ultimate fate00:00:19
the answers to these questions have come00:00:21
through a combination of observation00:00:23
experimentation and theoretical models00:00:26
which have shaped our understanding of00:00:27
the universe and our place within it00:00:30
with the latest theories and00:00:31
observations we'll explore the mysteries00:00:33
of this vast expanse of space and delve00:00:35
into the secrets it holds00:00:42
have you ever looked at the sky and00:00:43
wondered why anything exists at all00:00:46
there are approximately 200 billion00:00:48
trillion stars in the known universe00:00:51
or to put it another way 206 dillians00:00:54
the number is so big it's hard to00:00:57
imagine00:00:58
but hundreds of years back we didn't00:00:59
even know all these things existed00:01:02
stories of our Cosmos have been debated00:01:04
for centuries and can even be traced00:01:06
back even to the second century00:01:08
let's take a brief history00:01:14
in ancient Greece philosophers such as00:01:16
anaximanda and aristarchus made early00:01:18
attempts to understand the universe00:01:21
anax Amanda believed that air was the00:01:23
primary substance that held the universe00:01:25
together00:01:26
he believed that air was infinite and00:01:28
divine00:01:29
apostolated00:01:31
Eternal motion along with the apiron as00:01:33
the originating cause of the world00:01:35
the apiron was infinite and could not be00:01:37
created or destroyed00:01:39
while aristakas believed that the sun00:01:41
was at the center of the universe and00:01:43
that the Earth and other celestial00:01:45
bodies revolved around it00:01:47
however these early theories were not00:01:49
widely accepted00:01:51
it wasn't until the work of tillemi in00:01:53
the second century that the idea of a00:01:54
geocentric Universe with the Earth at00:01:56
the center became dominant00:01:58
this Theory held sway for over a00:02:00
thousand years until it was challenged00:02:02
by the Polish astronomer Nicolas00:02:03
Copernicus in the 16th century00:02:06
Copernicus argued that the sun was00:02:08
indeed at the center of the universe and00:02:10
that the Earth and other planets00:02:11
revolved around it a concept popularly00:02:13
known as heliocentrism00:02:15
this idea was further developed and00:02:17
refined by the German mathematician and00:02:19
astronomer Johannes Kepler and the00:02:21
Italian physicist and astronomer Galileo00:02:23
Galilei00:02:24
however their work was met with00:02:26
resistance from the Catholic Church00:02:28
which saw it as a threat to the00:02:29
long-held belief in a geocentric00:02:31
universe00:02:32
despite this opposition the evidence in00:02:34
support of heliocentrism continued to00:02:36
mount and by the 17th century it had00:02:39
become the dominant model of the00:02:40
universe00:02:41
this was cemented by the work of the00:02:43
English physicist and mathematician00:02:45
Isaac Newton who developed the laws of00:02:47
motion and gravity00:02:48
Newton published one of the most00:02:50
celebrated works of science the00:02:52
principia in 1687. in it he described00:02:56
that the force that pulls objects toward00:02:58
the ground is the very same force that00:03:00
underlies the motion of the planets and00:03:01
stars00:03:03
Newton formulated this insight into a00:03:05
mathematical equation known as the law00:03:07
of universal gravitation when combined00:03:10
with knowledge of geometry and Newton's00:03:12
other equations of motion we can use00:03:14
them to make predictions about the00:03:15
movement of the planets the parts of00:03:17
comets or how much force is needed to00:03:19
get a rocket to the moon00:03:21
we acknowledge Newton not just because00:03:23
of his idea but because he was able to00:03:25
formulate his idea into an equation that00:03:27
made predictions with greater accuracy00:03:29
than ever before00:03:30
but it wasn't perfect he didn't describe00:03:33
how gravity works the way it does00:03:36
Newton was well aware of this when he00:03:38
said00:03:39
gravity must be caused by an agent00:03:41
acting consistently according to certain00:03:43
laws but whether this agent be material00:03:45
or immaterial I have left to the00:03:47
consideration of my readers00:03:49
the concept of a heliocentric Universe00:03:52
dominated scientific thinking for the00:03:54
next few centuries until the development00:03:56
of the theory of general relativity by00:03:58
Albert Einstein in the early 20th00:04:00
century which provided a new and more00:04:02
complete understanding of the nature of00:04:03
the universe00:04:05
before Einstein the prevailing view was00:04:07
that space and time were separate00:04:09
entities absolute and unchanging with00:04:11
objects moving through them Einstein00:04:14
proposed that space and time were00:04:15
intertwined and could be affected by the00:04:17
presence of matter and energy forming a00:04:19
four-dimensional fabric known as00:04:20
space-time00:04:22
space in its simplest form refers to the00:04:25
physical space that surrounds us00:04:27
a three-dimensional area that we can00:04:29
move around in and experience00:04:32
this physical space is often referred to00:04:34
as euclidean space and is thought of as00:04:36
an absolute and unchanging backdrop to00:04:38
our existence time on the other hand is00:04:41
a little more complex00:04:43
time is the progression of events or00:04:45
memory in the frame of space00:04:47
it's also thought of as a dimension just00:04:49
like the dimensions of space00:04:52
however time is different from the00:04:53
physical dimensions of space because it00:04:55
has a directional aspect time only moves00:04:58
forward and this flow of time is00:05:00
referred to as the arrow of time so00:05:03
while time and space are separate00:05:04
Concepts they are closely related and00:05:06
can be thought of as intertwined aspects00:05:08
of the universe00:05:10
time provides a record of the events00:05:12
that occur in space while space provides00:05:14
the stage on which those events take00:05:16
place00:05:17
according to general relativity massive00:05:19
objects like stars and planets cause00:05:21
space-time to curve leading to the00:05:23
phenomenon of gravity00:05:24
this Theory revolutionized how we think00:05:27
about gravity replacing Isaac Newton's00:05:29
concept of gravity as a force with the00:05:31
idea that massive objects simply follow00:05:33
the Curves in space-time00:05:35
Einstein's theory showed that time can00:05:37
be relative meaning that time can pass00:05:39
at different rates for two observers00:05:41
depending on their relative velocity and00:05:43
proximity to massive objects00:05:45
this idea was confirmed by experiments00:05:47
and has significant consequences for our00:05:49
understanding of the universe such as00:05:51
the possibility of time travel00:05:53
in summary Einstein's theory of general00:05:55
relativity refined our understanding of00:05:58
space time and gravity and paved the way00:06:00
for many advances in modern astrophysics00:06:02
and cosmology00:06:04
back in his days almost every astronomer00:06:07
believed that the Universe was static00:06:08
but not until American astronomer Edwin00:06:11
Hubble presented his evidence of the00:06:12
expansion of the universe00:06:14
Einstein embraced the idea00:06:17
he called his adherence to the old idea00:06:19
his greatest blunder00:06:21
Albert Einstein was supposedly elated to00:06:23
hear of Hubble's work00:06:25
Einstein's theory of relativity implied00:06:27
that the Universe must either be00:06:29
expanding or Contracting00:06:31
Einstein himself however had rejected00:06:34
this notion00:06:35
instead he favored the accepted idea00:06:37
that the Universe was stationary and had00:06:39
always existed00:06:41
Hubble was among the first to recognize00:06:43
that there are other galaxies beyond the00:06:44
boundaries of our Milky Way00:06:46
he used a technique pioneered by Heria00:06:49
to Levitt to measure distances to remote00:06:50
objects in the sky Hubble use00:06:53
spectroscopic redshift data to measure00:06:55
the speeds these objects were traveling00:06:57
and then graph their distance from Earth00:06:59
against their speed he discovered that00:07:01
the speed at which astronomical objects00:07:03
move apart is proportional to their00:07:05
distance from each other00:07:07
in other words the farther away objects00:07:09
are from Earth the faster they are00:07:11
moving away from us this became known as00:07:14
Hubble's Law Edwin Hubble observed stars00:07:17
in a hazy patch of light that at the00:07:18
time was known as The Andromeda nebula00:07:21
specifically Hubble observed variable00:07:23
Stars those that change in brightness00:07:26
he measured the period of how long a00:07:28
star took to dim and brighten00:07:30
from the period of brightening he00:07:32
calculated the star's intrinsic00:07:34
brightness00:07:35
from that he could calculate the00:07:37
distance00:07:38
that's when he realized that the stars00:07:40
in this nebula were so far away that it00:07:42
couldn't exist within our own Galaxy00:07:45
at the time many astronomers believed00:07:47
that the Andromeda nebula was a forming00:07:49
solar system within the Milky Way00:07:51
Hubble showed that this patch of light00:07:53
was really a separate Galaxy00:07:55
thanks to Hubble we know it today as the00:07:58
Andromeda Galaxy00:07:59
it is the nearest large spiral galaxy00:08:01
beyond the Milky Way00:08:03
Hubble showed there are separate00:08:05
galaxies beyond our Milky Way and the00:08:07
more distant the Galaxy the faster it00:08:09
moves away from us00:08:11
these discoveries from Hubble Einstein00:08:13
and other great scientists have greatly00:08:15
contributed to our current understanding00:08:17
of cosmology00:08:18
their observations and theories have00:08:20
been incorporated into the Lambda cold00:08:22
Dark Matter model which is currently the00:08:24
most widely accepted cosmological model00:08:26
[Music]00:08:29
Central to it all is the Big Bang00:08:32
the basics of the theory are fairly00:08:34
simple in short the Big Bang hypothesis states00:08:37
that all of the current and past matter00:08:39
in the universe came into existence at00:08:41
the same time roughly 13.8 billion years00:08:43
ago00:08:44
at this time all Mata was compacted into00:08:47
a very small ball with infinite density00:08:49
an intense heat called a singularity00:08:51
suddenly Singularity began expanding and00:08:54
the universe as we know it began00:08:57
the earliest indications of the Big Bang00:08:59
occurred as a result of deep space00:09:00
observations conducted in the early 20th00:09:03
century00:09:04
in 1912 American astronomer vesto00:09:07
slipper conducted a series of00:09:08
observations of spiral galaxies which00:09:10
were believed to be nebulae at that time00:09:12
and measured their Doppler redshift00:09:14
in almost all cases the spiral galaxies00:09:17
were observed to be moving away from our00:09:19
own00:09:20
in 1922 Russian cosmologist Alexander00:09:23
Friedman developed what is known as the00:09:25
Friedman equations which were derived00:09:27
from Einstein's equations for general00:09:29
relativity00:09:30
contrary to Einstein's advocating at the00:09:32
time with his cosmological constant00:09:34
Friedman's work showed that the Universe00:09:36
was likely in a state of expansion00:09:39
in 1924 Edwin Hubble's measurement of00:09:42
the great distance to the nearest spiral00:09:43
nebula showed that these systems were00:09:45
indeed other galaxies00:09:47
at the same time Hubble began developing00:09:49
a series of distance indicators using00:09:51
the 100-inch hooker telescope at Mount00:09:53
Wilson Observatory00:09:55
and then in 1927 George's lemaitre a00:09:58
Belgian physicist and Roman Catholic00:10:00
priest independently derived the same00:10:02
results as Friedman's equations and00:10:04
proposed at the inferred recession of00:10:06
the galaxies was due to the expansion of00:10:08
the universe00:10:09
in 1931 he took this further suggesting00:10:12
that the current expansion of the00:10:14
universe meant that the father back in00:10:15
time one went the smaller the universe00:10:17
would be00:10:18
at some point in the past he argued the00:10:21
entire mass of the universe would have00:10:23
been concentrated into a single point00:10:24
from which the very fabric of space and00:10:26
time originated00:10:28
these discoveries triggered a debate00:10:30
between physicists throughout the 1920s00:10:32
and 30s with the majority advocating00:10:34
that the Universe was in a steady state00:10:37
in this model new matter is continuously00:10:39
created as the universe expands thus00:10:41
preserving the uniformity and density of00:10:43
matter over time00:10:45
among these scientists the idea of a big00:10:48
bang seemed more theological than00:10:49
scientific and accusations of bias were00:10:51
made against lemaitre based on his00:10:53
religious background00:10:55
other theories were advocated during00:10:57
this time as well such as the mill model00:10:59
and the oscillatory universe model00:11:01
both of these theories were based on00:11:03
Einstein's theory of general relativity00:11:05
and held that the Universe follows00:11:07
infinite or indefinite self-sustaining00:11:09
Cycles00:11:10
after World War II the debate came to a00:11:13
head between proponents of the steady00:11:14
state model and proponents of The Big00:11:16
Bang Theory which was growing in00:11:18
popularity00:11:19
ironically it was whole who coined the00:11:21
phrase Big Bang during a BBC Radio00:11:24
broadcast in March 1949.00:11:27
the tide of observational evidence00:11:28
shifted towards the Big Bang Theory over00:11:31
the steady state Theory as more00:11:32
discoveries were made in 1965 the00:11:36
discovery and verification of cosmic00:11:38
microwave background radiation00:11:39
solidified the Big Bang as the00:11:41
prevailing theory of the universe's00:11:43
origin and evolution00:11:45
this was due to the big Bang's00:11:46
prediction of uniform background00:11:48
radiation resulting from high00:11:49
temperatures and densities in the00:11:51
distant past today The Big Bang Theory00:11:54
is widely accepted due to the abundance00:11:56
of empirical evidence supporting it00:11:58
precise measurements of the universe's00:12:01
expansion rate placed the Big Bang00:12:02
Singularity at approximately00:12:04
13.787 billion years ago which is00:12:07
considered the age of the universe while00:12:10
the Big Bang Theory is widely accepted00:12:12
there are still observed aspects of the00:12:14
universe that remain unexplained by its00:12:16
models00:12:17
following the initial expansion the00:12:19
universe called enabling the formation00:12:21
of subatomic particles and later atoms00:12:24
the baryon asymmetry or the unequal00:12:26
abundance of matter and antimatter that00:12:28
allowed for this is still an unresolved00:12:30
issue these primordial elements00:12:32
primarily hydrogen with some helium and00:12:35
lithium later combined due to gravity to00:12:37
form early stars and galaxies00:12:39
in 2014 scientists from the Harvard's00:12:42
Smithsonian Center for astrophysic00:12:44
studying characteristics of cosmic00:12:45
microwave background radiation detected00:12:47
evidence to support inflation Theory00:12:49
their observations are believed to00:12:52
reflect the imprint of gravitational00:12:53
waves on the universe in the first few00:12:55
moments after the big bang00:12:57
about 380 000 years after the big bang00:13:00
the universe became transparent to light00:13:03
for the next several billion years00:13:05
gravity slowed the expansion of the00:13:07
universe00:13:08
about 8 billion years after the big bang00:13:10
expansion of the universe began to00:13:12
accelerate00:13:13
cosmologists believe that an effect00:13:15
called dark energy is causing the00:13:17
universe to expand by making Mata repel00:13:19
other matter00:13:21
at present we still don't know what dark00:13:23
energy is but we'll get back to it later00:13:25
in the video00:13:27
first let's see how big the entire00:13:29
universe really is foreign00:13:33
how far can you see00:13:35
everything you can see and everything00:13:37
you could possibly see right now00:13:39
assuming your eyes could detect all00:13:41
types of radiations around you is the00:13:43
observable universe00:13:44
in terms of visible light the farthest00:13:47
we can observe originates from the00:13:48
cosmic microwave background a Time 13.800:13:51
billion years ago when the universe was00:13:53
dense like a heavy fog00:13:55
some neutrinos and gravitational waves00:13:58
that surround us come from even farther00:13:59
out but humans currently lack the00:14:01
technology to detect them00:14:03
the featured image showcases the00:14:05
observable universe on a progressively00:14:07
smaller scale starting with the Earth00:14:09
and Sun at the center followed by our00:14:11
solar system nearby Stars nearby00:14:13
galaxies distant galaxies filaments of00:14:16
early matter and the cosmic microwave00:14:17
background00:14:19
cosmologists often assume that the00:14:21
observable universe is simply a00:14:22
localized portion of a larger entity00:14:24
referred to as the universe where the00:14:26
same physical laws apply00:14:28
however there are various speculative00:14:30
theories that suggest that even the00:14:32
universe is part of a greater Multiverse00:14:34
where physical constants may vary00:14:36
different physical laws may be in effect00:14:38
higher Dimensions may exist or slightly00:14:40
different versions of the standard00:14:42
universe may occur by chance00:14:44
in the area of the universe that we can00:14:46
see there are approximately two trillion00:14:49
galaxies00:14:50
the universe is believed to be00:14:51
homogeneous and isotropic meaning that00:14:53
it looks the same in every direction00:14:56
as a result there is no preferred Center00:14:58
or Edge and no special direction that is00:15:00
more up or down than any other00:15:02
the universe simply exists as it is00:15:04
without a specific Center or Edge00:15:07
from anywhere in the observable universe00:15:09
the farthest point is 46.5 billion light00:15:12
years away of course that exceeds the00:15:15
age of the universe which is only about00:15:17
13.8 billion years so how is that00:15:20
possible00:15:21
these two numbers represent different00:15:23
things and should not be confused00:15:25
the age of the universe is the time that00:15:27
has passed into the Big Bang while the00:15:29
diameter of the observable universe is00:15:31
the maximum extent of the region we can00:15:33
observe and is determined by the00:15:35
distance that light can travel in that00:15:36
time00:15:37
simply enough due to a process we don't00:15:40
yet understand the universe is expanding00:15:42
and the further away an object is the00:15:44
faster it recedes from The Observer00:15:47
we currently refer to the phenomenon as00:15:49
being driven by dark energy and dark00:15:51
matter which are terms we created as00:15:53
placeholders until we have an00:15:54
explanation for the process00:15:56
dark energy and dark matter are two00:15:58
mysterious and enigmatic substances that00:16:01
scientists believe make up a significant00:16:02
portion of the universe00:16:04
although they have not been directly00:16:06
observed their existence is inferred00:16:08
from their gravitational effects on00:16:10
visible matter00:16:11
scientists estimate that dark matter00:16:13
makes up about 27 of the total mass of00:16:16
the universe00:16:17
one of the way scientists have tried to00:16:19
detect dark matter is through the use of00:16:21
particle detectors such as the Large00:16:23
Hadron Collider00:16:25
however despite several searches dark00:16:27
matter has yet to be directly observed00:16:30
some scientists believe that dark matter00:16:32
May consist of weakly interacting00:16:34
massive particles While others think it00:16:36
could be made up of sterile neutrinos or00:16:38
axons and for Dark Energy scientists00:16:41
believe that dark energy makes up about00:16:43
68 of the total energy of the universe00:16:47
although it is one of the most dominant00:16:48
forms of energy in the universe its00:16:50
nature is still not well understood00:16:53
one of the ways scientists have tried to00:16:55
understand dark energy is by studying00:16:57
its effects on the expansion of the00:16:59
universe00:17:00
according to the standard cosmological00:17:02
model the universe began with the big00:17:04
bang and has been expanding ever since00:17:06
however observations of supernovae in00:17:09
distant galaxies have shown that the00:17:11
expansion of the universe is actually00:17:12
accelerating rather than slowing down as00:17:15
previously believed00:17:16
this acceleration is believed to be00:17:18
caused by the presence of dark energy00:17:21
there are several theories about the00:17:22
nature of dark energy including the00:17:24
cosmological constant quintessence and00:17:27
Phantom energy00:17:28
the cosmological constant first proposed00:17:31
by Albert Einstein is the simplest00:17:33
explanation for dark energy and assumes00:17:35
that it is a constant energy density00:17:36
that is uniformly distributed throughout00:17:38
the Universe00:17:40
quintessence is a more complex theory00:17:42
that suggests that dark energy is a00:17:44
dynamic field that evolves over time00:17:47
Phantom energy is a more exotic theory00:17:49
that suggests that dark energy has a00:17:51
negative equation of State meaning that00:17:53
it increases as the universe expands00:17:55
as time progresses Dark Energy will00:17:58
become increasingly significant while00:17:59
all other forms of energy including dark00:18:01
matter will become insignificant00:18:04
despite the possibility of a00:18:06
relationship between dark matter and00:18:07
dark energy it remains Elusive and not00:18:09
clearly understood by physicists with00:18:11
our current knowledge of the natural00:18:13
world00:18:14
to account for Dark Matter an additional00:18:16
component is required that can form00:18:18
clumps through gravitational attraction00:18:19
but does not Collide or apply pressure00:18:22
conversely for Dark Energy a component00:18:25
is necessary that doesn't Clump or00:18:27
Collide but does produce pressure00:18:29
are they related00:18:30
we cannot say for certain until we have00:18:34
some evidence that these two things00:18:35
actually are related somehow we have to00:18:37
take the conservative approach00:18:39
Dark Matter forms and holds together the00:18:41
largest bound structures but Dark Energy00:18:43
pushes those individual structures away00:18:45
from one another00:18:47
the latter is so successful that in 10000:18:49
billion years or so all that will be00:18:52
left of our visible universe is the00:18:53
local group of galaxies00:18:55
beyond that there will only be an empty00:18:57
expanse of nothingness with no other00:18:59
galaxies visible for trillions upon00:19:01
trillions of light years00:19:07
[Music]00:19:21
the world around us is made up of00:19:24
countless particles ranging from the00:19:26
atoms that make up the air we breathe to00:19:27
the cells that make up our bodies00:19:31
what are these particles made of and how00:19:33
do they interact with each other00:19:36
if we look at the body on a macroscopic00:19:38
level we see a collection of cells that00:19:40
work together to form tissues organs and00:19:43
ultimately the entire organism00:19:45
but if we zoom in closer we see that00:19:47
each cell is made up of countless00:19:49
particles including protons nutrients00:19:52
and electrons00:19:53
and if we zoom in even closer we see00:19:56
that those protons and nutrients are00:19:57
made up of quarks in fact the entire00:20:00
universe can be thought of as a vast00:20:02
collection of quarks and other subatomic00:20:04
particles all interacting with each00:20:06
other through the fundamental forces of00:20:08
nature00:20:09
this Perfection is all the more00:20:11
remarkable when we consider the00:20:12
universe's history from its birth in the00:20:14
fiery explosion of the Big Bang to its00:20:16
ongoing expansion and evolution00:20:18
despite all the chaos and destruction00:20:20
that has occurred in the universe the00:20:22
fundamental laws of nature have remained00:20:24
constant providing a stable foundation00:20:26
for the emergence and evolution of life00:20:29
it's difficult to look up at the night00:20:31
sky and not be struck by the sheer00:20:33
perfection of the universe00:20:35
everything seems to have been designed00:20:36
with meticulous attention to detail from00:20:38
the countless galaxies and stars00:20:40
stretching across the Heavens to the00:20:41
intricate interwoven systems that govern00:20:43
the universe's Behavior00:20:45
and nowhere is this Perfection more00:20:47
apparent than in the delicate balance of00:20:49
physical constants that allow for the00:20:51
emergence of life00:20:52
the universe is eerily uncannily perfect00:20:55
as a setting for creating life00:20:57
all of the physical constants that00:20:59
govern the universe's behavior from the00:21:01
speed of light to the ratios of the four00:21:03
fundamental forces seen finely tuned to00:21:05
allow for the emergence of Life as We00:21:07
Know It if any of these constants were00:21:10
even slightly different the universe00:21:11
would be inhospitable incapable of00:21:13
supporting the complex chemical00:21:15
reactions and biological processes that00:21:17
make life00:21:18
this level of precision and fine-tuning00:21:20
has led many to wonder why is the00:21:22
universe so perfect00:21:24
how did all of these physical constants00:21:26
become so perfectly calibrated to allow00:21:28
for the emergence of life00:21:30
is there a purpose behind the universe's00:21:32
Perfection or is it simply a coincidence00:21:38
[Music]00:21:45
[Music]00:21:48
at one time people around the world00:21:50
believed that the Universe consisted of00:21:52
a flat Earth surrounded by the Sun the00:21:54
moon and the stars00:21:56
over time ancient astronomers became00:21:58
aware that some stars did not move like00:22:00
the rest and began to understand that00:22:02
some of these objects were planets00:22:04
in time astronomers then also began to00:22:07
understand that the Earth was indeed00:22:09
round and came up with rationalized00:22:10
explanations for the behavior of other00:22:12
celestial bodies00:22:14
and by classical Antiquity scientists00:22:16
had formulated ideas on how the motion00:22:18
of the planets occurred and how all the00:22:20
Heavenly orbs fit together for about 100:22:23
400 years Humanity believed that the00:22:26
Earth was at the center of it all with00:22:28
the Sun Moon planets and stars revolving00:22:30
around the Earth00:22:32
which is what we refer to as the00:22:34
geocentric model of the universe an00:22:36
astronomer named eudox has created the00:22:38
first model of a geocentric Universe00:22:40
around 380 BC00:22:42
this geocentric model of the universe00:22:44
was the prevailing view for much of00:22:46
human history but it was not without its00:22:48
problems ancient astronomers noticed00:22:51
that some of the planets seemed to move00:22:52
backward in the sky at certain times a00:22:55
phenomenon known as retrograde motion00:22:57
to explain this they came up with00:22:59
increasingly complex models involving00:23:01
Crystal spheres and Tiny circles this00:23:04
theory was further refined by to lemi to00:23:07
lemi argued that the Earth was a sphere00:23:09
in the center of the universe from the00:23:11
simple observation that half the stars00:23:13
were above the Horizon and half were00:23:14
below the Horizon at any time and the00:23:17
assumption that the stars were all at00:23:18
some modest distance from the center of00:23:20
the universe00:23:21
if the Earth was substantially displaced00:23:23
from the center this Division00:23:24
intervisible and invisible Stars would00:23:27
not be equal00:23:28
but in the 16th century a Polish00:23:30
mathematician an astronomer named00:23:32
Nicolas Copernicus presented a radically00:23:34
different Universe model00:23:36
his heliocentric model placed the Sun at00:23:38
the center of the solar system with the00:23:40
Earth and other planets orbiting around00:23:41
it00:23:42
it took some time for copernicus's ideas00:23:45
to gain widespread acceptance as they00:23:47
challenged long-held beliefs and went00:23:48
against the established authority of the00:23:50
Catholic Church00:23:52
but over time observations by Galileo00:23:54
and others helped to confirm the00:23:56
heliocentric model and it gradually00:23:58
became the prevailing view in the00:23:59
scientific community00:24:01
the 20th century brought about massive00:24:03
advancement in technology and our00:24:05
ability to study the universe00:24:07
as astronomers peered into the heavens00:24:09
with ever larger telescopes it became00:24:11
clear that the sun is just one of the00:24:13
billions of stars within our Milky Way00:24:15
galaxy00:24:18
and the Milky Way in turn is just one of00:24:20
potentially trillions of galaxies in the00:24:22
observable universe00:24:25
but the realization that we are just a00:24:27
small part of a vast and expansive00:24:29
Universe didn't stop there00:24:31
with the work of scientists like Edwin00:24:33
Hubble we learned that the universe is00:24:35
not only vast but also expanding00:24:37
this led to the development of The Big00:24:39
Bang Theory which states that the00:24:41
Universe began with a massive explosion00:24:43
13.8 billion years ago00:24:46
all of these discoveries have led us to00:24:48
ask the question are we special in the00:24:49
universe00:24:51
the answer it seems is both yes and no00:24:54
on one hand we are just one species on00:24:57
one planet in a vast and ever expanding00:24:59
universe00:25:00
but on the other hand the conditions00:25:02
that allowed for our existence are00:25:04
incredibly specific and rare from the00:25:06
tilt of the Earth's axis to the precise00:25:08
placement of the Moon our planet and its00:25:10
surrounding environment are perfectly00:25:12
suited for Life as We Know It00:25:14
sometimes you can only resort to the00:25:16
most basic of assumptions that however00:25:18
the universe may behave it behaved in a00:25:20
way that allowed it to give rise to00:25:22
intelligent observers like us00:25:24
this line of thinking is known as the00:25:26
anthropic principle00:25:28
nobody doubts that the Universe exists00:25:30
that it obeys fundamental laws and that00:25:32
we like everything else in this universe00:25:34
also obey those same rules00:25:37
we arose naturally and therefore the00:25:39
universe must have properties that at00:25:41
least make it possible if not mandatory00:25:42
for intelligent living observers like us00:25:45
to arise00:25:46
the anthropic principle came about in00:25:48
1973 when physicist Brandon Carter made00:25:51
the following two statements we must be00:25:54
prepared to take into account the fact00:25:56
that our location in the universe is00:25:57
necessarily privileged to the extent of00:26:00
being compatible with our existence as00:26:01
Observers00:26:03
the universe and hence the fundamental00:26:05
parameters on which it depends must be00:26:07
as to admit the creation of observers00:26:09
within it at some stage00:26:11
the first statement is now known as the00:26:13
weak anthropic principle which simply00:26:15
states that the Universe must be such00:26:16
that we could have come into existence00:26:18
within it00:26:19
the second is called the strong00:26:21
anthropic principle which states that if00:26:23
no one arose in the universe would never00:26:25
be here investigating it00:26:27
however these interpretations of the00:26:29
anthropic principle fail to recognize00:26:31
that probability is not an objective00:26:33
absolute but rather it's relative to a00:26:35
set of specific conditions00:26:37
once all the conditions are established00:26:39
the probability of an event occurring00:26:41
becomes either one or zero00:26:43
therefore the existence of life does not00:26:46
imply that the universe is perfect00:26:48
moreover relying solely on the anthropic00:26:51
principle to explain the Perfection of00:26:53
the universe ignores the fundamental00:26:54
goal of science that is to understand00:26:56
the natural processes that shaped our00:26:58
universe00:27:00
the scientific inquiry aims to uncover00:27:02
the mechanisms that led to the current00:27:04
state of the universe not to use00:27:05
anthropic arguments to explain its00:27:07
properties00:27:09
the anthropic principle is a useful00:27:11
starting point for exploring the00:27:12
constraints on the properties of our00:27:14
universe still it is not a complete00:27:17
scientific explanation in and of itself00:27:20
but where does that leave us00:27:24
[Music]00:27:31
in the Medieval Era philosophers and00:27:34
Scholars grappled with the nature of the00:27:35
universe and the origins of life00:27:38
one such thinker was sigura brabant a00:27:40
13th century philosopher who authored00:27:42
the thesis The Eternity of the world00:27:45
cigar was born in brabant a region in00:27:47
modern-day Belgium around the year 124000:27:50
and studied in Paris which was then the00:27:52
center of the intellectual world00:27:54
in Paris cigar was associated with the00:27:56
radical Aristotelian movement which00:27:58
sought to reconcile the teachings of the00:28:00
ancient Greek philosopher with the00:28:02
doctrine of Christianity this movement00:28:04
was led by figures such as avros and00:28:06
avicenna who had translated and00:28:08
interpreted Aristotle's works and who00:28:10
argued that philosophy could be used to00:28:12
supplement and deepen religious faith00:28:15
Sega was deeply influenced by these00:28:17
thinkers and his own philosophy00:28:18
emphasized the importance of reason and00:28:20
the power of human intellect he argued00:28:23
that philosophy was a necessary00:28:25
complement to Theology and that the00:28:26
truths of Faith could be illuminated and00:28:28
made more understandable through the use00:28:30
of logic and argumentation00:28:32
in his thesis on The Eternity of the00:28:35
world cigar challenged the traditional00:28:36
view that the Universe had a definite00:28:38
beginning and that it had been created00:28:40
instead cigar argued that the Universe00:28:43
had always existed and that it was00:28:44
eternal and self-sufficient00:28:46
according to Cigar there was no first00:28:48
man and no first specimen of any00:28:50
particular species and the physical00:28:52
Universe was without any First beginning00:28:55
sigga's thesis was highly controversial00:28:57
and it sparked intense debate among00:28:59
Scholars and theologians of his time00:29:01
many argued that sigus ideas were00:29:03
heretical and threatened the foundations00:29:05
of the Christian faith While others saw00:29:07
in them an opportunity to deepen and00:29:09
enrich their understanding of the world00:29:12
however sigur's idea of an eternal00:29:14
Universe found new life in the 20th00:29:16
century with the steady state model00:29:18
according to the steady state model the00:29:20
universe is perfect because it has00:29:22
always existed in a state of balance and00:29:24
symmetry with new matter being00:29:25
constantly created to replace the matter00:29:27
that is lost as the universe expands00:29:30
this theory was developed in 1948 by00:29:33
Fred Hoyle Hermann Bondi and Thomas gold00:29:36
it was founded on what's now known as00:29:38
the perfect cosmological principle which00:29:40
hypothesized that the Universe wasn't00:29:42
just the same on average everywhere in00:29:44
space but also in time that no matter00:29:47
when you looked at the Universe on00:29:49
average you'd always see the same thing00:29:52
this is the core tenet of the steady00:29:54
state theory that the Universe isn't00:29:56
just the same everywhere but also00:29:57
everywhere the steady state universe00:30:00
isn't just Eternal but timeless00:30:03
according to this Theory the universe00:30:05
has always been in a state of perfect00:30:06
balance with just the right amount of00:30:08
matter and energy to maintain its00:30:10
expansion this is one of the theories00:30:12
that can at least explain why the00:30:14
universe is so perfect00:30:16
but however just like other theories00:30:18
there's a catch00:30:20
even though the theory was so good that00:30:22
even Einstein favored it problems with00:30:24
the steady state model began to emerge00:30:26
in the 1950s and 60s when astronomers00:30:28
discovered the accelerated expansion of00:30:30
the universe radio galaxies and quasars00:30:33
that are only observed at High redshifts00:30:36
however the real nail in the coffin of00:30:38
the steady state theory was the00:30:39
discovery of cosmic microwave background00:30:41
radiation in 196500:30:45
this is a weak background radiation that00:30:47
fills the whole of space and is the same00:30:49
in all directions this paved way for The00:30:52
Big Bang Theory00:30:53
which is considered the best explanation00:30:55
of the origin of the universe00:30:58
which states that the Universe expanded00:31:00
from a very hot very dense and00:31:02
infinitesimally small Point called a00:31:04
singularity in The Big Bang Theory this00:31:07
radiation is a relic or Snapshot from00:31:09
the time the universe was young and hot00:31:10
and was predicted before it was even00:31:12
discovered00:31:14
however in the steady state Theory it is00:31:16
almost impossible to explain the origin00:31:18
of this radiation00:31:20
the idea that the Universe expanded from00:31:22
a single point was first presented in a00:31:24
scientific paper by a Belgian00:31:25
cosmologist and Catholic priest Georges00:31:28
lemaitre in 1931. he proposed the00:31:31
existence of a Primeval Atom where the00:31:33
fabric of space and time originated00:31:36
in 1927 years before he presented this00:31:39
idea he also submitted a paper00:31:41
discussing his derivations on Einstein's00:31:43
equations00:31:45
it led him to conclude that the universe00:31:47
is expanding and that the speed of the00:31:48
galaxies is proportional to their00:31:50
distances00:31:51
in 1929 Edwin Hubble presented more00:31:54
updated and detailed data establishing00:31:56
the proportionality between the00:31:58
distances and the speeds of the galaxies00:32:01
in 1964 George Gamo proposed the idea00:32:04
that the Universe expanded and called00:32:05
from an initial state of infinite00:32:07
density and temperature he added that00:32:10
all protons nutrients and electrons have00:32:12
been present in that ocean of high00:32:14
energy radiation00:32:16
calculations also explained the relative00:32:18
abundances of hydrogen and helium but00:32:20
not the heavier elements00:32:22
this leaves us with one vital question00:32:25
have the laws of nature remained the00:32:27
same since the Big Bang some 13.800:32:29
billion years ago00:32:30
[Music]00:32:36
in the 4th Century Aristotle argued that00:32:39
one of the major goals of physics was00:32:40
the study of change00:32:42
if the laws of physics that we knew have00:32:44
changed with time then we can ask for00:32:46
the reason behind this change and call00:32:48
that a law of physics instead00:32:50
if that in turn appeared to change then00:32:52
again we can ask for the reason behind00:32:54
this change one does not expect this to00:32:57
go on eventually it will come to a stop00:33:00
and we have a physical theory that is00:33:02
independent of time00:33:04
if any of the fundamental forces of the00:33:06
universe were to change the results00:33:08
would be catastrophic00:33:10
here in our modern Universe we've got00:33:12
gravitation electromagnetism and the00:33:14
strong and weak nuclear forces00:33:16
if any of these forces went constant00:33:18
it's easy to imagine how Haywire the00:33:21
universe would get00:33:22
if the force of gravity weren't constant00:33:24
the consequences would be far-reaching00:33:26
and potentially disastrous reliable00:33:29
predictions of object motion on Earth00:33:31
Celestial orbits within our solar system00:33:33
flight parts of aircraft and spacecraft00:33:35
and Cosmic phenomena such as00:33:37
gravitational lensing and universe00:33:39
expansion would be virtually impossible00:33:41
to make00:33:42
same thing goes for electromagnetic00:33:44
force00:33:45
if it weren't constant electrons in00:33:47
orbit around Atomic nuclei would see00:33:49
their orbitals and energy levels change00:33:51
and The Binding properties between00:33:53
electrons in different atoms would00:33:54
become highly uncertain00:33:56
in other words every molecule in the00:33:58
universe if the electromagnetic force00:34:01
changed would alter its properties in a00:34:03
fundamental fashion00:34:04
if this happened where entities like00:34:06
human beings exist would be immediately00:34:08
thrust into an unsustainable00:34:10
configuration00:34:11
if it occurred on Earth life would00:34:13
immediately come to an end00:34:15
and if the strong or weak nuclear force00:34:17
has changed it would bring about a level00:34:19
of catastrophe that would be Swift and00:34:21
severe leaving little time for us to00:34:23
even comprehend what was happening00:34:25
dable Atomic nuclei would undergo00:34:27
spontaneous Decay releasing a tremendous00:34:29
amount of energy as they shifted into a00:34:31
more stable configuration00:34:33
bound atoms would be stripped of their00:34:35
electrons and transformed into ionized00:34:37
particles resulting in the creation of a00:34:40
plasma universe in the affected region00:34:42
the consequences of such a disruption to00:34:45
the fundamental nuclear forces would be00:34:47
so profound that it's impossible to00:34:48
fully comprehend the scale of the00:34:50
devastation that would result00:34:52
our universe must have been born with00:34:54
lumps but if we're different than this00:34:55
the masses of those lumps would have00:34:57
been very different00:34:59
if it was much smaller there'd be no00:35:01
structure at all00:35:02
much larger and we could have had a00:35:04
universe catastrophically filled with00:35:06
black holes from a very very early time00:35:09
to give us the universe we have required00:35:11
an extremely fortuitous combination of00:35:13
circumstances and lucky for us the one00:35:16
we were given looks to be just right00:35:18
we happen to live in a universe that00:35:20
supports life because if we didn't we00:35:22
wouldn't be here to wonder about it00:35:24
but what if the fine-tuning of our00:35:26
universe is not remarkable because there00:35:28
are countless other universes that have00:35:30
different physical constants and laws of00:35:32
nature00:35:33
foreign00:35:40
in 1952 Irwin Schrodinger gave a lecture00:35:43
in which he jocularly warned his00:35:45
audience that what he was about to say00:35:46
might seem lunatic00:35:48
he said that when his equation seemed to00:35:50
describe several different histories00:35:52
these were not Alternatives but all00:35:54
really happened simultaneously00:35:56
this sort of Duality is called00:35:58
superposition00:36:00
according to David Deutsch this is the00:36:02
earliest known reference to many worlds00:36:04
this implies that all possible outcomes00:36:07
of quantum measurements are physically00:36:08
realized in some world or universe00:36:11
imagine that the Universe we observe00:36:13
from end to end is just a drop in the00:36:15
cosmic ocean00:36:16
beyond what we can see there's more00:36:19
space more stars more galaxies and More00:36:21
Everything perhaps billions of light00:36:23
years farther than we'll ever be able to00:36:25
access00:36:26
and that as large as the unobservable00:36:28
universe is there are again innumerably00:36:30
more universes just like it00:36:32
some might be larger and older some00:36:34
smaller and younger dotted throughout an00:36:37
even larger space time00:36:38
as rapidly and inevitably as these00:36:40
universes expand the space-time00:36:42
containing them expands even more00:36:44
quickly driving them apart from one00:36:46
another and ensuring that no two00:36:47
universes will ever collide00:36:50
this is the scientific idea of a00:36:52
Multiverse00:36:53
but if the science we accept today is00:36:55
correct it's not only a valid idea it's00:36:57
an unavoidable consequence of our00:36:59
fundamental laws00:37:01
the idea of the Multiverse has its roots00:37:03
in the physics required to describe the00:37:05
universe that we see and inhabit today00:37:07
as WE peer out into the cosmos we are00:37:10
confronted with a seemingly infinite00:37:11
expanse of stars galaxies and Cosmic00:37:14
structures that stretch across vast00:37:15
distances of space and time00:37:18
the more we look the more we see and the00:37:20
more questions arise if we go all the00:37:23
way to the limits of what we can see we00:37:25
find the very earliest stars in the00:37:27
universe and then a region of Darkness00:37:29
beyond that where the only light is the00:37:31
leftover glow from The Big Bang00:37:33
but the big bang itself occurring00:37:35
everywhere some 13.8 billion years ago00:37:37
wasn't the start of space and time but00:37:39
rather the start of our observable00:37:41
universe00:37:42
before that there was an Epoch known as00:37:44
Cosmic inflation where space itself00:37:46
expanded exponentially full of energy00:37:48
inherent to the fabric of space-time00:37:51
in 2007 Nobel Laureate Stephen Weinberg00:37:54
suggested that if the Multiverse existed00:37:56
the hope of finding a rational00:37:58
explanation for the precise values of00:38:00
Quark masses and other constants of the00:38:02
standard model that we observe in our00:38:03
big bang is doomed00:38:05
for their values would be an accident of00:38:07
the particular part of the Multiverse in00:38:09
which we live00:38:10
this picture of huge universes far00:38:13
bigger than the meager part that's00:38:14
observable to us constantly being00:38:16
created across this exponentially00:38:18
inflating space is what the Multiverse00:38:20
is all about00:38:21
there are other universes that might not00:38:24
favor intelligent life like us00:38:26
that our universe is just perfect for us00:38:29
it's important to recognize that the00:38:31
Multiverse is not a scientific theory on00:38:33
its own00:38:34
it makes no predictions for any00:38:36
observable phenomena that we can access00:38:38
from within our own pocket of existence00:38:41
rather the Multiverse is a theoretical00:38:43
prediction that comes out of the laws of00:38:45
physics as they are best understood00:38:46
today00:38:48
it's perhaps even an inevitable00:38:49
consequence of those laws00:38:51
if you have an inflationary Universe00:38:53
governed by quantum physics this is00:38:55
something you're pretty much destined to00:38:57
wind up with00:38:58
[Music]00:39:04
in 1913 Lawrence Joseph Henderson made a00:39:08
significant contribution to the study of00:39:10
the universe's fine-tuning with his book00:39:12
The Fitness of the environment00:39:14
among the first works of its kind the00:39:16
book delved into the critical role of00:39:18
water and environmental conditions in00:39:20
sustaining life00:39:21
Henderson noted that life's existence00:39:24
depends entirely on the Earth's specific00:39:25
conditions particularly the abundance00:39:27
and properties of water building on this00:39:30
Foundation physicist Robert Dickey00:39:32
postulated in 1961 that the universe's00:39:35
physical forces including00:39:36
electromagnetism and gravity must be00:39:39
finely tuned to allow for life to thrive00:39:42
similarly in his 1984 book The00:39:44
intelligent Universe Fred Hoyle argued00:39:46
that numerous non-biological phenomena00:39:48
appeared to be essential to the00:39:49
existence of carbon-based life forms00:39:51
such as humans00:39:53
whole put it the list of anthropic00:39:55
properties apparent accidents of a00:39:57
non-biological nature without which00:39:59
carbon-based and hence human life could00:40:01
not exist is large and impressive00:40:04
to convictions about the universe's00:40:05
fine-tuning led many to believe that the00:40:07
Large Hadron Collider would uncover00:40:09
evidence of physics beyond the standard00:40:11
model such as supersymmetry however00:40:14
despite Expectations by 2012 the00:40:17
collider had not yielded proof of00:40:18
supersymmetry at the energy levels it00:40:20
was capable of probing00:40:22
despite these competing theories there's00:40:24
no denying the fact that our universe is00:40:26
indeed remarkably consistent and well00:40:28
ordered the speed of light is the same00:40:31
in every corner of the cosmos the laws00:40:33
of thermodynamics hold true from the00:40:35
smallest particles to the largest00:40:36
structures and the ratio of the strong00:40:38
force to the electromagnetic force is00:40:40
just right to allow for the formation of00:40:42
stars and galaxies00:40:44
alter the relative strengths of gravity00:40:46
and electromagnetism a little bit stars00:40:48
and galaxies can't form00:40:51
different in the proton and Neutron's00:40:53
masses to make the proton heavier and00:40:55
you don't even get stable atoms00:40:57
changing these numbers would probably00:40:59
preclude any life in the universe00:41:02
it isn't a big leap to say it looks like00:41:04
the knobs have been twiddled as if the00:41:06
universe was somehow fine-tuned for our00:41:07
existence00:41:09
but what does all of this mean for us00:41:12
well it suggests that there's something00:41:14
special about the universe and the way00:41:15
that it operates00:41:17
it points to a sense of purpose or00:41:19
meaning that extends beyond our00:41:21
individual lives and experiences00:41:23
it reminds us that we are part of00:41:25
something much larger and more intricate00:41:27
than we could ever fully comprehend00:41:29
so the next time you look up at the00:41:31
night sky take a moment to Marvel at the00:41:33
Perfection and consistency of the00:41:35
universe let it remind you of the00:41:37
incredible mystery and beauty of the00:41:39
world we live in and of our place in the00:41:41
grand scheme of things00:41:43
but one of the biggest challenges now is00:41:45
how can we find a theory that can link00:41:47
up everything in the universe like a00:41:50
magic Theory I have already made a video00:41:52
on that00:41:54
click the video up on your screen to00:41:56
watch it and I'll see you there thanks00:41:58
for watching And subscribe for more00:42:00
videos00:42:01
foreignDescription:
The origins of the Universe have intrigued humanity for centuries. From the Big Bang theory to modern cosmology, our knowledge about the Universe has greatly expanded. Scientists have discovered that the Universe appears to be finely tuned for life, with a vast array of physical constants and laws that are essential for the formation of stars, galaxies, and planets.
Preparing download options
* — If the video is playing in a new tab, go to it, then right-click on the video and select "Save video as..."
** — Link intended for online playback in specialized players
Questions about downloading video
How can I download "Why Is The Universe Designed So PERFECTLY- Maybe it Was Crea..." video?
http://unidownloader.com/ website is the best way to download a video or a separate audio track if you want to do without installing programs and extensions.
The UDL Helper extension is a convenient button that is seamlessly integrated into YouTube, Instagram and OK.ru sites for fast content download.
UDL Client program (for Windows) is the most powerful solution that supports more than 900 websites, social networks and video hosting sites, as well as any video quality that is available in the source.
UDL Lite is a really convenient way to access a website from your mobile device. With its help, you can easily download videos directly to your smartphone.
Which format of "Why Is The Universe Designed So PERFECTLY- Maybe it Was Crea..." video should I choose?
The best quality formats are FullHD (1080p), 2K (1440p), 4K (2160p) and 8K (4320p). The higher the resolution of your screen, the higher the video quality should be. However, there are other factors to consider: download speed, amount of free space, and device performance during playback.
Why does my computer freeze when loading a "Why Is The Universe Designed So PERFECTLY- Maybe it Was Crea..." video?
The browser/computer should not freeze completely! If this happens, please report it with a link to the video. Sometimes videos cannot be downloaded directly in a suitable format, so we have added the ability to convert the file to the desired format. In some cases, this process may actively use computer resources.
How can I download "Why Is The Universe Designed So PERFECTLY- Maybe it Was Crea..." video to my phone?
You can download a video to your smartphone using the website or the PWA application UDL Lite. It is also possible to send a download link via QR code using the UDL Helper extension.
How can I download an audio track (music) to MP3 "Why Is The Universe Designed So PERFECTLY- Maybe it Was Crea..."?
The most convenient way is to use the UDL Client program, which supports converting video to MP3 format. In some cases, MP3 can also be downloaded through the UDL Helper extension.
How can I save a frame from a video "Why Is The Universe Designed So PERFECTLY- Maybe it Was Crea..."?
This feature is available in the UDL Helper extension. Make sure that "Show the video snapshot button" is checked in the settings. A camera icon should appear in the lower right corner of the player to the left of the "Settings" icon. When you click on it, the current frame from the video will be saved to your computer in JPEG format.
What's the price of all this stuff?
It costs nothing. Our services are absolutely free for all users. There are no PRO subscriptions, no restrictions on the number or maximum length of downloaded videos.