A wooden artefact found on the step pyramid at Saqqara looks uncannily like a modern glider.
"在塞加拉的梯形金字塔上,人们发现了一个木制的手工制品,这个手工制品与一种现代滑翔机惊人地相似。
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Harrell and Bown believe that blocks were loaded onto barges during the dry season, then floated over to the Nile during the floods to be shipped off to the monument sites at Giza and Saqqara.