Am 19.02.2015 um 09:25 schrieb scott:
>> I'm building a bubble around my spaceship to protect from "drag" at
>> interstellar velocities. This site says that for subsonic craft a
>> parabola is a better shape for the nose. However, an ogive is better at
>> supersonic speeds.
>>
>> http://www.aerospaceweb.org/question/aerodynamics/q0151.shtml
>>
>> Which applies in outer space? Or, should I not use either and use a
>> teardrop shape instead?
>
> What is the speed of sound in space... I don't think any "supersonic"
> designs are necessary.

In an ideal gas, the speed of sound is proportional to the square root 
of the pressure... until relativistic effects kick in, I guess.

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