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
- Did Salmonella Kill Off the Aztecs?
- Jewish history is under siege in the middle east and these volunteers are risking their lives to protect it
- 'Amazon should stop selling Holocaust denial books'
- National Museum of African American History and Culture Reaches Milestone of 1 Million Visitors
- What Makes a President Great? Clipping? Sipping? Slashing?
- McMaster knows how national security policy can go wrong. Will that help him?
- Historian and Antiwar Activist Marilyn Young Dies at 79
- Trump Chooses Historian H.R. McMaster as National Security Adviser
- Holocaust Historian Deborah Lipstadt Explains Why People Believe Trump's Lies
- Princeton’s Harold James warns World War Three is now a "serious threat”