relativity

Category archives for relativity

“Astronomers are greatly disappointed when, having traveled halfway around the world to see an eclipse, clouds prevent a sight of it; and yet a sense of relief accompanies the disappointment.” –Simon Newcomb Next year, on August 21st, 2017, millions of Americans will delight in the first total solar eclipse to go from coast-to-coast in 99…

“For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return.” -Leonardo da Vinci The Universe is an awfully big place, but how certain are we that we couldn’t travel in a straight line for a very long…

“They say the universe is expanding. That should help with the traffic.” -Steven Wright Look out at a nearby object in our Universe, and you’ll find that the amount of time you look back (in years) is pretty much exactly equal to the object’s distance (in light years). But look far away, and these two…

“A human being is part of a whole, called by us the Universe, a part limited in time and space. He experiences himself, his thoughts and feelings, as something separated from the rest a kind of optical delusion of his consciousness. This delusion is a kind of prison for us, restricting us to our personal…

“Find a place inside where there’s joy, and the joy will burn out the pain.” -Joseph Campbell One of the cardinal rules of a black hole is that anything that falls inside the event horizon — that crosses that invisible boundary — can never escape. That’s because the escape velocity from inside the event horizon…

“We shall not cease from exploration, and the end of all our exploring will be to arrive where we started and know the place for the first time.” -T.S. Eliot Now that not just one but two gravitational wave events have been directly detected, we’re officially in the era of true gravitational wave astronomy. LIGO…

“It turned out that nature was very kind, and there appear to be many of these black holes in the Universe and we were lucky enough to see one.” -Dave Reitze, executive director of LIGO On September 14th, 2015, just days after turning on, the twin Advanced LIGO detectors detected the first gravitational wave signature:…

“If everything seems under control, you’re not going fast enough.” -Mario Andretti One of the toughest things to wrap your mind around in the natural world is the idea of special relativity: the faster you move, the closer you get to the speed of light, the more difficult it becomes to increase your speed at…

Why Does E=mc^2? (Synopsis)

“Science is global. Einstein’s equation, E=mc^2, has to reach everywhere. Science is a beautiful gift to humanity, we should not distort it.” -A.P.J. Abdul Kalam Over 100 years ago, Einstein shook up the physics world with a number of groundbreaking discoveries: special relativity, brownian motion, the photoelectric effect, and his most famous equation, E = mc^2.…

“The first amazing fact about gravitation is that the ratio of inertial mass to gravitational mass is constant wherever we have checked it. The second amazing thing about gravitation is how weak it is.” -Richard Feynman One of the strangest, most novel predictions of Einstein’s relativity is that mass would not only curve space, but…