00:00two thousand years ago could humans really build something this precise
00:03water wheels gears sundials no this is a computer it sits today in a glass case in athens
00:1130 bronze gears one hand crank turn that crank and it tells you where the sun is on any given
00:16day
00:17where the moon is where each of the five known planets sits so where did it come from in 1901
00:24a group of greek sponge divers were working off the coast of antiquity 40 meters down they hit a
00:29sunken roman ship it was loaded with bronze statues of marble and pottery and one unremarkable lump
00:36a corroded rock with gears frozen inside for years nobody cared it was later broken into 82 fragments
00:44barely a third of the original inside 30 rusted bronze gears when fully reassembled the whole
00:50machine is barely the size of a laptop but what really stops people cold is where you can
00:55calculate turn the side crank the pointer moves and it gives you the position of the sun and moon
01:00ecliptic for any day you choose it tracks mercury venus mars jupiter saturn it predicts solar and lunar
01:07increases it cannot tell you the year of the next ancient olympic games so the question how did
01:13people two thousand years ago know how many teeth each give you the answer is written in the sky
01:18big astronomers have already measured a cycle for in 19 years the world completes exactly 254 tsunami
01:24months a precise ratio so the builders did something good they turned that astronomical ratio into
01:31gear teeth a gear with 38 teeth drives one 127 38 is double 19 127 is half of 250 why
01:41have it because a
01:43whole size gear would be too big to fear do you see the big thing they didn't build the machine
01:48and then
01:48walk through first they work out the rules of the sky then they carve that rule into metal to the
01:53flight to this machine does it will take the sky it translates the sky into gears and that's just the
02:00back
02:00layer the front is the real puzzle because that's where most of the gears live in March 2021 a team
02:06at
02:06university college might have published a reconstruction that packs the entire planetary
02:10mechanism into a space about 25 millimeters there 25 millimeters roughly two points stacked the lead
02:16researcher adam wochik noted that a modern manufacturer would use a precision lathe to machine these shapes
02:22the greek designer did it with nothing so far that's just how clever the machine is but there's one
02:28number more unsettling than everything else combined the machine dates to roughly 150 to 100 bc
02:34europe's next device of comparable complexity the 14th century astronomical clocks 1400 years in between
02:42think about what that means from this machine sinking to the sea to europe rebuilding something
02:47comparable you have the entire rise and fall of the roman empire the entire middle ages it's not that
02:53humanity stopped for 1400 years countless other things happened but on this one specific task turning
02:59complex astronomy into position gears humanity reached the height then fell and took 1400 years to climb
03:06back now let me hit the brakes or this video trips into a cheap direction so was it aliens you've
03:13probably
03:13seen that claim online to advance for its time so it must be alien or from a lost civilization here's
03:20what the
03:20researcher who studied michael wrighton actually said unless it came from outer space we must find a way to
03:25reconstruct how the rings use it it sounds like a joke but it's a clear statement the people who study
03:31this machine never treated aliens as an option every part of it points to humans it uses greek astronomy
03:37it's engraved it's engraved with greek text it computes the greek calendar in the olympics it doesn't
03:43transcend the terror it belongs to it we just underestimated what that era could do so do we fully
03:49understand the understanding here not white two pieces clear enough first calling it a computer is
03:55a matter of fact it can't program it can't calculate anything else it does one thing turn the crank in
04:02the
04:02sky and strictly it's a dedicated astronomical device
04:31as they have written this machine go there it can't control the clock it's called
04:34so dude you've got to do it for sure if that's?!"
04:36and whether that's going to go in here to another channel for start-ups
