Teaching Physics (and more) with Niven

Notes

One way the approximation fails is a bias to the antispinward – if an object is launched straight up at 8 miles a second, it will land about 100 miles antispinward, and if the object is launched aimed slightly spinward, it will reach about 36 miles higher than if launched antispinward. This is also a demonstration of the difficulty in taking off from Ringworld. At 8 miles/second a rocket would leave earth easily, but on Ringworld at the same velocity a projectile crashes. We’ll explore the comparison between Earth and the Ring in more detail in the next few slides.

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