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The Environment / Re: Would limiting population be the best solution for climate change and violence?

« on: 19/10/2016 20:09:24 »

Population growth is a disaster in the making, especially in India and Africa. The average family size in sub-Saharan Africa is 4.5 children which is unsustainable, and will lead to even more problems than exist already, which are substantial.

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Physics, Astronomy & Cosmology / Re: What would be the transit time to Mars with unlimited power?

« on: 28/09/2016 18:04:06 »

s = 0.5 a t^2 where s = distance, a = acceleration and t = time (you did that at school, surely?)

Minimum transit distance is probably 10^11 meters. Put a = 20 m/s^2 (a bit more than 2g) then t^2 = 10^10 so t = 10^5 seconds, just over a day.

You don't need to be sarcastic.