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Download "Behind the Beehive - The Code - Episode 2 - BBC Two"

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Video tags

bees
behind the behive
the code
episode
two
bbc
ep2
honeycomb
honey
Marcus du Sautoy
triangle
aquare
hexagon
maths
science
Subtitles
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Subtitles

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00:00:00
this almost looks man-made manufactured
00:00:03
I mean it doesn't look like something
00:00:04
from the natural world the Precision the
00:00:06
fine straight lines that they've created
00:00:09
is extraordinary right right it's a an
00:00:11
engineering Wonder for sure look at the
00:00:14
it's it's perfect hexagon here yeah it
00:00:19
is
00:00:20
amazing and uh the hexagon is a very
00:00:24
strong
00:00:26
structure the bees have made an
00:00:28
identical pattern to the columns on the
00:00:31
Giant's
00:00:32
Causeway each cell is exactly like the
00:00:35
others six walls meeting precisely at
00:00:40
120° and every honeybee everywhere in
00:00:43
the world knows how to build these
00:00:46
shapes it's as if the hexagon is built
00:00:49
into the bees DNA you can see the bees
00:00:52
going uh down inside the cell it's
00:00:54
almost exactly the same size as their
00:00:56
bodies are they using their body like a
00:00:59
ruler in I would I would say that's an
00:01:02
accurate description I know different
00:01:04
races have a smaller body and the cell
00:01:06
size in their comb is smaller and each
00:01:08
of the hexagons how do they actually
00:01:10
make a hexagon rather than some
00:01:12
irregular shape they've just done it for
00:01:14
thousands and thousands of years they
00:01:16
were born to do it they just
00:01:17
instinctively know that this is the
00:01:21
shape of their
00:01:24
home but there's more to the bee's
00:01:27
Behavior than Raw Instinct
00:01:31
there's another reason why they build in
00:01:35
hexagons and to reveal that reason we
00:01:37
need to turn to the universal language
00:01:40
of all nature
00:01:47
mathematics the bees primary need is to
00:01:50
store as much honey as they can while
00:01:52
using as little precious wax as possible
00:02:03
the bees honeycomb is an amazing piece
00:02:05
of engineering but why have they evolved
00:02:08
to produce this hexagonal pattern well
00:02:11
actually they don't have too many
00:02:12
choices if you try to put pentagons
00:02:15
together for example they just don't fit
00:02:16
together nicely or circles leave lots of
00:02:19
little
00:02:20
gaps if they want to produce a network
00:02:23
of regular shapes which fit together
00:02:25
neatly uh then you've really only got
00:02:27
three options you can do equal Al
00:02:30
triangles or you could do
00:02:33
squares or you can do the be's
00:02:36
hexagons but why of those three does the
00:02:39
B choose the hexagons well it turns out
00:02:43
that the triangles actually use much
00:02:45
more wax than any of the other shapes
00:02:47
squares are a little better but it's the
00:02:49
hexagons which use the least amount of
00:02:53
wax it's a solution that was only
00:02:56
mathematically proven a few years ago
00:02:59
the hex exagonal array is the most
00:03:01
efficient storage solution the bees
00:03:03
could have
00:03:04
chosen yet With a Little Help From
00:03:07
Evolution they worked it out for
00:03:09
themselves millions of years ago

Description:

Subscribe and 🔔 to the BBC 👉 https://www.youtube.com/user/bbc?sub_confirmation=1 Watch the BBC first on iPlayer 👉 https://www.bbc.co.uk/iplayer https://www.bbc.co.uk/programmes/b04lsdbh In episode two of The Code, Marcus du Sautoy explains why bees choose to use a hexagon to build their honeycomb structure rather than a triangle or a square. #bbc All our TV channels and S4C are available to watch live through BBC iPlayer, although some programmes may not be available to stream online due to rights. If you would like to read more on what types of programmes are available to watch live, check the 'Are all programmes that are broadcast available on BBC iPlayer?' FAQ 👉 https://www.bbc.co.uk/iplayer/help/questions/programme-availability/availability

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