如何计算Space Elevator
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Space elevator is theoretical tether reaching geostationary orbit, lowering launch costs to space by avoiding rockets.
分步指南
- 1Input Earth parameters, cable material properties (strength/density)
- 2Calculate tension distribution along cable
- 3Verify feasibility
例题解析
输入
Carbon nanotube cable (theoretical)
结果
Height ~36,000 km, tension manageable with current materials marginally
Material science limitation
常见错误注意事项
- ✕Neglecting material weight effect
- ✕Ignoring atmospheric drag at lower altitudes
常见问题
Why hasn't anyone built one?
No material simultaneously strong enough and light enough; requires ~100× current material performance.
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