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Найден клон Земли! Кеплер 438B

Найден клон Земли! Кеплер 438B

Channel: Hubble

Пчёлы-Саперы. Как это работает?

Пчёлы-Саперы. Как это работает?

Channel: Кик Брейнс

Бессмертная Медуза

Бессмертная Медуза

Channel: Кик Брейнс

Уникальный Эксперимент - Человекоподобный Шимпанзе

Уникальный Эксперимент - Человекоподобный Шимпанзе

Channel: Кик Брейнс

Удивительный, животный мир - Дикая природа. Лев vs Жираф.

Удивительный, животный мир - Дикая природа. Лев vs Жираф.

Channel: Дикая природа

Кик Обзор

Кик Брейнс

Kik Brains

Научпоп

документальный фильм

Стивен Хокинг

Райнхард Генцель

Андреа Гез

Чёрная дыра

Уравнения Эйнштейна

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a week ago, scientists published the first

00:01:49

ever photos of the supermassive black

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hole Sagittarius, and in the center of our galaxy the

00:01:54

event was greeted quite warmly,

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but as expected, a couple of days later everyone

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has forgotten about the black hole in the world, of course,

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there are more important topics, but for those who

00:02:04

want to get distracted, in the next couple of minutes

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we will explain how this pile of pixels

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changed the world of science, a tiny and

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maximum step photograph did not

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just confirm theoretical

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developments, it opened the door to science

00:02:18

fiction with warp engines is fraught

00:02:20

scientists and travel to the stars, how

00:02:23

exactly about this in the next couple of minutes

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after a little information, a black hole, as

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you probably know, is one of the most

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mysterious objects in space, these things of

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incredible mass and density

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bend space so much that even light

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cannot get beyond their limits

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can often be found Comparing black holes with

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vacuum cleaners is not entirely correct; it is more

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correct to compare a black hole with a funnel in

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space-time, yes, it has a chute,

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as it rolls down, there is a feeling of being

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sucked in, but it is rather not being sucked in,

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but rather falling in space onto a time

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hole from which it is impossible to get out, but

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at the same time

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Black holes don’t suck everything around with any vacuum cleaner; if

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you place a black hole of similar mass

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in the place of our sun, nothing will change for the earth,

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except for the

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disappearance of living conditions, but

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otherwise the planet won’t be sucked in anywhere; it will

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continue to rotate in its orbit;

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problems will begin only when approaching the

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black hole hole, their

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existence was mathematically confirmed by Einstein, and

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to understand the models you don’t need to have a

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scientific degree because everything is very

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simple, if gravity is not a force but the usual

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curvature of space-time, then this

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very space-time must be

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inhomogeneous, that is, in some places it is a flat

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sheet of paper and in other places it is that is, the planets

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that this sheet of paper remembers down

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creating a small funnel on the borders

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which rotates the hypothetical moon

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if it gets a little closer then rotating

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will begin to fall into this funnel this by the way

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happens to the satellite of Mars Phobos itself

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which will soon fall on the surface of the

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red planet the earth influences the sun

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the sun affects all planets and somewhere in

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space there are stars that are tens of times more

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massive than the sun and therefore

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break through space-time, they break through space-time even

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more Einstein deduced a formula for how

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it all works and a side effect of

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these formulas became black hypothetically

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mathematics that Einstein deduced from

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observations of known objects

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allowed the existence of an object of

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incredible density, it is

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their density that is their mass; this is an important point that

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needs to be understood. A star called a

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pistol in the constellation Sagittarius is almost a

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hundred times heavier than the sun, but

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it is not a black hole, and the unicorn black hole is

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one of the closest to the earth at only

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three times heavier than our star and 30 times

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lighter than the pistol star, but nevertheless

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it is a real black hole somehow the

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highlight in that very

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density is one thing when a large mass

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is concentrated in a huge body like a

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pistol star, but quite another when the

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same mass is shot down incredibly It’s

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not difficult to imagine this tightly; it’s one

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thing if you drop a large ball onto a sheet of paper

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and it creates a huge but at the same

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time not critical for the sheet funnel,

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but a small object of the same mass

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risks piercing the sheet of paper like a bullet,

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then the magic turns on in

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our world, objects in

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which the mass is concentrated as

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densely as possible can be called by science to turn into neutron

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stars or black holes, Einstein himself, by

00:05:24

the way, did not believe in the existence of black holes,

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this once again emphasizes how

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impartial science is, even the author may

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not believe in the work, but with the equation

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you can’t argue with that, and Roger Penrose in

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1965 didn’t argue with them; instead,

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he delved into the theory and mathematically

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proved that objects of similar density and

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mass are formed after the death of

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massive stars, when huge stars

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come to the end of their lives, on the one hand they

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eject a bunch of matter into outer

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space and on the other hand, it experiences a gravitational

00:05:56

collapse that compresses the

00:05:58

matter that remains in the center of the star to a

00:06:01

very small volume and a

00:06:03

singularity appears, an area where, due to the madness of

00:06:06

gravity, the laws of physics cease to

00:06:08

apply then there was Stephen Hawking

00:06:10

Reinhard Gen goal Andrea Geos and other

00:06:13

Genya scientists who have no nothing but a

00:06:16

sheet of paper solved the riddles of the universe,

00:06:19

well, figuratively speaking, in fact, Hansel and

00:06:21

Guess were just studying the

00:06:22

trajectory of stars to try to find a

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black hole that influences them with its

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powerful gravity, because in the background

00:06:30

all of Einstein’s minor statements

00:06:32

were confirmed, it turned out that time on the

00:06:35

ISS let for milliseconds, but still it goes

00:06:38

differently than on earth, strange

00:06:40

stars were found that seem to be revolving around an

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empty point in space, and a

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bunch of indirect evidence of

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the existence of black holes appeared, but such a

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human being is a creature, until he sees something with

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his own eyes in life, he won’t believe it, and here

00:06:54

in 2019 year, we saw the first ever

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image of a black hole, this is an incredibly

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complex process, because neither light nor other

00:07:04

radiation can escape from the hole, and

00:07:06

it turns out that we had to

00:07:08

photograph a black cat in a room

00:07:10

with the lights off, how to do this is as

00:07:13

simple as shelling pears, because the cat has eyes

00:07:15

that are real clear to any camera,

00:07:17

so scientists armed themselves with the same

00:07:19

principle by photographing not the black

00:07:22

hole itself, but its surroundings, that is, matter

00:07:25

that either falls into it or is

00:07:27

dangerously close and, under the influence of

00:07:29

powerful gravity, behaves like

00:07:32

crazy, but still some problems

00:07:34

remain from -due to the incredible density,

00:07:36

black holes are very small, for example,

00:07:39

if our sun were a black hole, then

00:07:41

its diameter would be only three

00:07:43

kilometers nebula, stars and galaxies,

00:07:45

photographs of which are shared by Hubble, these are

00:07:48

objects much larger; their diameter

00:07:50

is measured in light years; we

00:07:53

talked about this in one of the past videos, but

00:07:55

in short, the scientists were faced with a

00:07:57

good old astronomical problem, a solution

00:08:00

that was similar to the solution to the problem of

00:08:02

finding exoplanets,

00:08:04

you need to photograph something incredibly

00:08:06

healthy and preferably not having

00:08:08

something bright and creating interference

00:08:11

nearby exoplanets, basically we

00:08:13

also find gigantic and

00:08:15

orbiting dim stars and with black

00:08:17

holes, we chose the same principle; the goals of the

00:08:20

2019 program were the black holes M87,

00:08:24

fifty-three million light years away

00:08:26

from us, and Sagittarius, and located in the center of the

00:08:29

Milky Way, it is much closer but at the

00:08:31

same time smaller if Sagittarius is 4

00:08:34

million times heavier than the sun then the black

00:08:36

hole M87 is six and a half billion

00:08:40

times heavier, that is, in relation to the size

00:08:42

of the distance, not everything is so bad, and also the gas

00:08:45

around M87 rotates more slowly and

00:08:49

this creates much less interference, so it turned out

00:08:51

that the first photo of a black hole in history

00:08:53

came to us from another galaxies,

00:08:55

but scientists didn’t give up trying,

00:08:57

and they also got their hands on Sagittarius, now we have

00:09:00

two photographs of black holes at once and the most

00:09:02

obvious fact is that nothing can be attributed to chance,

00:09:07

Einstein’s equations actually turned out to be correct

00:09:09

and the existence of black holes was confirmed

00:09:11

not by one, but by two photographs at once

00:09:14

this question can be clearly closed and

00:09:16

others can be opened, for example, compare

00:09:19

black holes with each other and check

00:09:21

whether they are different because our science

00:09:23

says that the laws of physics should

00:09:25

work the same way everywhere, paradoxically,

00:09:27

but even a black hole violates the laws

00:09:29

of physics by these very laws and it

00:09:31

is predicted what the outcome will be it

00:09:34

hurts and hits the target in a press release from the

00:09:37

European Southern Observatory, which

00:09:38

published the photo, it is said that the 2

00:09:41

observed black holes are absolutely

00:09:43

identical, they differ only in the material

00:09:46

that is around them about the behavior of the

00:09:48

composition and principles of operation of the two

00:09:50

black holes known to mankind completely

00:09:52

copy each other Jeffrey Bauer one

00:09:55

one of the leaders of the study admitted

00:09:57

that the team was shocked by how much the

00:09:59

sizes of the rings of disks and jets converge with

00:10:02

theoretical calculations, but what is

00:10:04

truly shocking is what we

00:10:06

photographed for comparison, if

00:10:08

you take the Hubble telescope and calculate

00:10:10

how many times better it had to be

00:10:12

to get a similar photo, you

00:10:14

will get the figure is two and a half thousand,

00:10:17

that is, to photograph a black hole you need a

00:10:20

telescope two and a half thousand times

00:10:22

more powerful than Hubble, the resolution

00:10:25

that was given by com x, which photographed a

00:10:28

black hole is enough to take a frame of a

00:10:30

matchbox on the moon, this says a lot

00:10:33

about how much humanity as a

00:10:35

whole has advanced in space exploration,

00:10:37

however, even this is not the main breakthrough

00:10:39

that the photograph of a black hole gave us,

00:10:41

the main breakthrough is that all the

00:10:43

theoretical developments turned out to be correct,

00:10:46

but what if you look at other

00:10:47

mathematical developments available to

00:10:50

humanity, you don’t have to go far for examples,

00:10:52

just like black holes from the

00:10:54

equations Einstein is theoretically

00:10:56

deducing wormholes, that is, holes in

00:11:00

space-time that allow you to

00:11:02

move over vast distances,

00:11:04

there is dark matter, hypothetically

00:11:06

allowing you to solve the energy crisis

00:11:08

and give humanity a breakthrough in development,

00:11:11

there are developments in extracting energy from

00:11:13

stars, solar holes and other objects,

00:11:16

despite the mathematical correctness,

00:11:18

most of such developments

00:11:20

remained in the realm of science

00:11:22

fiction for a long time, but since we see confirmation of

00:11:24

the existence of long-term theoretical

00:11:27

black holes, then why should

00:11:30

n’t the theoretical theory sooner or later turn

00:11:32

out to be true, so that these

00:11:34

seemingly step-by-step sets of pixels are not

00:11:36

just another achievement in the world of science,

00:11:38

they are confirmation of this that it works

00:11:41

according to the right schemes and is indeed

00:11:43

theoretically capable of predicting things

00:11:45

that exist, which means that

00:11:48

the train of technology is moving in the right

00:11:50

direction until we meet again friends

00:11:52

[music]

Description:

Курс “Профессия Data Scientist PRO” от Skillbox — https://clc.to/VM9d0Q По промокоду “Кик Брейнс” скидка 50% до конца июня. Подпишись, у нас интересно. https://www.youtube.com/kikbrains?sub_confirmation=1 Наш Паблик - https://vk.com/science_technology РЕКЛАМА [email protected]

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