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General Science / Re: Does the earth move away from the sun when it slows down?

« on: 05/10/2016 11:50:38 »

This was worked out by Kepler, when he worked out that the planets follow ellipses around the Sun.
- The orbit sweeps out equal areas in equal time (Kepler's second law)
- When the planet is closest to the Sun (as the Earth is in January), it travels the fastest, making it swing out farther in February
- When the planet is farthest from the Sun (as the Earth is in July), it travels the slowest, making it fall in towards the Sun in August

Isaac Newton proved mathematically that only an inverse square law of gravitation can explain these orbits.

See: https://en.wikipedia.org/wiki/Kepler%27s_laws_of_planetary_motion

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General Science / Re: Was Einstein wrong about E=mc^2?

« on: 27/09/2016 08:58:56 »

Scarecely relevant, but who cares? The mathematics of relativity is simple enough but I dare you to derive a maximum-entropy MRI reconstruction algorithm on the KISS principle. Not sure about drooling but I have people queuing in the street to use mine!

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General Science / Re: For relativity, does the mass of a moving object increase in all directions?

« on: 03/09/2016 23:50:00 »

To understand exactly why relativistic mass, energy and momentum are accepted physical concepts I refer the reader to the following.

https://en.m.wikipedia.org/wiki/Tests_of_relativistic_energy_and_momentum

Experimental confirmation trumps all.