00:00How were the pyramids really built?
00:02With ancient tools and no modern technology?
00:06How did they move 2.5 ton blocks?
00:08Here's how they did it.
00:10First, they cut massive stones from the ground using copper tools and wooden wedges.
00:15They'd make cuts in the rock, then hammer wedges in.
00:19Water would soak the wood, it would expand.
00:21And the stone would split apart.
00:23Then they moved the blocks.
00:25They put them on wooden sleds, like giant sleighs.
00:28Thousands of workers pulled them with ropes.
00:31But here's the smart part.
00:33They poured water on the sand in front of the sleds.
00:35Wet sand is slippery.
00:37The blocks slid much easier.
00:39Straight ones, too hard.
00:41Instead, the ramps spiraled around the pyramid as it got taller.
00:45Workers pulled the blocks up the ramps using ropes.
00:48Some ramps were actually inside the pyramid.
00:51They used simple, were ramp sticks as levers to move and position the stones perfectly.
00:56And most important, teamwork.
00:58Thousands of workers working together.
01:00Each doing their job all at the same time.
01:03It took 20 years.
01:05100,000 workers.
01:06Simple tools.
01:08Strong bodies.
01:10Perfect planning.
01:11The pyramids weren't built by magic.
01:13They were built by people who understood how to use simple tools.
01:17Smart.
01:18We've just forgotten how.
01:19We've just forgotten how.
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