NovaENT - Profile

NovaENT

LV 11

What to say, just friendly neighborhood alien studiing the earthlings.

2017-09-23 Joined Global

Badges 7

Moments 11

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Posted

I am giving the low world background because of the physics problems. The author mentions speeds like 200m/s 100m/s as the maximal speed of some engines. They are in space and in space, there is no terminal velocity other than the speed of light so engines can keep accelerating until they reach it. In space, the speed is almost of no consequence. The only important is relative speed or delta-v (delta velocity). That is a difference of speed between two objects. If the author wants to express the power of engines he/she should express it as acceleration and not speed. Speed starts to matter only in the atmosphere because the friction of air introduces terminal velocity. To surpass this terminal velocity you need to increase engine power and when the speed increases so does the friction so to keep increasing maximal speed you need to increase engine power. In space, there is no friction and therefore no force that limits the maximum achievable speed of shuttler/ space fighter/rocket/missile/escape pod. The only terminal velocity in space is the speed of light and only when objects is moving in relativistic velocities the engine speed maters. So if there is some engine speed limit it should be in percents of C that is about 2000000 m/s upwards and more likely 10000000 m/s and absolutely nowhere as lows 200 m/s. I like the story but these physics problems introduce in me a such massive dissonance. (That is't how reality works like). The other sci fi things aren'T that problematic but this is to me so fundamental that it breaks me out of the story. And it would be so easy to fix it wouldn't affect the story much and I would be glad to give a much higher rating than what I given now.

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