Relativity

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Do you think the stars are too far away for your liking? Then this is perfect for you! In this talk, I cover very briefly all the potential solutions to take humanity from home to Alpha Centauri and beyond.

That is an excellent question, and the answer lies with the two theories of relativity: special and general.

On the 4th of February a paper was published detailing a Universe that didn’t need a Big Bang. While it is very interesting (you can read it here) I find myself once again at odds with how theoretical papers are formulated.

The paper details a mathematical robust way to solve many cosmological conundrums. The flatness problem (discussed in this vlog), the value of dark energy and the nature of dark matter.

For all intents and purposes gravity travels at the speed of light but it is very hard to measure, and so far we have no direct model-independent measurement of the speed of gravity. Physics has to main gravitational models: Newtonian dynamics and General Relativity The Newtonian gravitational model assumes that the gravitational interaction is instantaneous, and […]