📁 中国
A web directory of English-language sites relating to China in general and a guide to utilizing the Internet for information on China.
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条目 (20+)
The Doppler Effect and Sonic Booms
http://www.acs.psu.edu/drussell/Demos/doppler/doppler.html
How Wave Pools Work
http://science.howstuffworks.com/engineering/structural/wave-pool.htm
How Aerosol Cans Work
http://science.howstuffworks.com/innovation/everyday-innovations/aerosol-can.htm
NOVA Online: Einstein Revealed
http://www.pbs.org/wgbh/nova/physics/einstein-big-idea.html