Unified field theory

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Light is both a wave and a particle.

At near 0 Kelvin, helium is absolutely frictionless.

At quantum levels you can either know the position of a particle, or the direction, never both.

There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened.

heh.

Along that line, some people think the Higgs boson particle will answer all these questions.

http://www.theatlantic.com/technology/archive/2011/07/end-of-higgs-search-will-confirm-or-refute-the-standard-model-of-physics-within-months/242466/

Myself, I am not that optimistic. Every time scientists think they have narrowed things down and come to an answer, they wind up with more questions than they started with.

Besides which, consider the last three lines of the story - "And that's really the most fascinating possibility. If scientists can't find the Higgs even at LHC energies, then the entire model of standard physics will have to be rethought. And there's nothing better in physics than experimental data ruining the theory."