| Unlocking a 4,500-Year-Old Secret
The Great Pyramid of Giza is the oldest and most intact of the Seven Wonders of the Ancient World. Built as a tomb for Egyptian Pharaoh Khufu around 2560 BC, it was the tallest man-made structure in the world for over 3,800 years.
Now, a robotics team from Leeds University in the UK will attempt to unlock one of the pyramid's greatest secrets: what lies behind a hidden doorway in the Queen's Chamber.
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 Ever wish your ride to school didn't take so long? Try climbing aboard this jet-powered school bus, and you may have a few more minutes to sleep in this morning. It is made of aviation grademetals, fitted with a jet engine, and can reach speeds up to 367mph!
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