Forbidden City builders chose ice sledge over wheelsBreaking News
tags: China, Beijing, Forbidden City, engineering
Fifteenth-century Chinese engineers didn't so much reinvent the wheel as dispense with it altogether – opting to drag heavy stones for building the Forbidden City along a slippery artificial ice road instead of wheeling them.
That, at least, is the upshot of the latest analysis of a 17th-century Chinese text. Such a method would be 10 times as efficient as dragging the rocks along non-icy ground – suggesting that Chinese engineers had a more sophisticated understanding of friction than their Western counterparts at that time.
The Forbidden City, in what is now Beijing, housed China's emperors for almost 500 years. Several of the massive stones incorporated into its design were extracted from the Dashiwo quarry. That is 70 kilometres away – and the stones weigh in excess of 100 tonnes....
comments powered by Disqus
- Now it’s the University of Louisville’s turn to remove a Confederate statue
- A fortress built by Alexander the Great after he conquered Jerusalem has been discovered
- Yale students protest decision to keep Calhoun’s name
- Six maps that will make you rethink the world
- Middle Tenn. State President Wants to Strip Confederate General’s Name From Building
- The historian and cartographer Bill Rankin has developed a new way to visualize slavery
- Paula S. Fass says young Americans need required national service
- Historians are now trying to show that the gay revolution also took place in the midwest
- The Unconference Movement Grows – And Historians Are Taking the Lead
- New appeal to "Bring Back Military History"