The Strangest Theory We Know Is True (Synopsis)

When it comes to physics, there sure are some strange theories — and even stranger phenomena — out there. The notion that particles don’t have fixed, intrinsic properties that are simultaneously measurable can only be described as weird, and the fact that you can add as much energy as you want to a particle but it will never accelerate to beyond a particular speed is certainly counterintuitive. Yet one theory has them all beat.

Image credit: John D. Norton, via http://www.pitt.edu/~jdnorton/teaching/HPS_0410/chapters/Special_relativity_clocks_rods/index.html.
Image credit: John D. Norton, via http://www.pitt.edu/~jdnorton/teaching/HPS_0410/chapters/Special_relativity_clocks_rods/index.html.

For ninety-nine years, now, General Relativity has made a whole host of unique predictions, ranging from time slowing down in a gravitational field to the bending of starlight to the decay of pulsar orbits, that have been observationally confirmed each and every time.

Image credit: Hubble / ESA and NASA.
Image credit: Hubble / ESA and NASA.

It’s the strangest theory we know to be true, and Brian Koberlein has a fantastic writeup of it all!