Physics

Category archives for Physics

“Cheap little rhymes A cheap little tune Are sometimes as dangerous As a sliver of the moon.” -Langston Hughes 4.5 billion years ago, a giant object collided with our proto-Earth, kicking up debris that eventually coalesced into the Moon. While the near side contains dark maria and lunar lowlands, the far side is almost exclusive…

“It’s not the job of the theorist to defend his model at all costs!” – Joel Primack One of the more puzzling phenomena in our quantum Universe is that of entanglement: two particles remain in mutually indeterminate states until one is measured, and then the other — even if it’s across the Universe — is…

“Some kind of celestial event. No — no words. No words to describe it. Poetry! They should have sent a poet. So beautiful. So beautiful… I had no idea.” –Dr. Ellie Arroway, Contact Back in 2006, the International Astronomical Union defined the term “planet” for the first time by three criteria: its ability to orbit the…

“Studying whether there’s life on Mars or studying how the universe began, there’s something magical about pushing back the frontiers of knowledge. That’s something that is almost part of being human, and I’m certain that will continue.” -Sally Ride If you came to the Solar System some 500 million years after its formation, you would’ve…

“Historically, when we have better clocks, we have better navigation.” –David Wineland If you want to keep time in the Universe, you need a reference point that everyone can agree on, so that when you talk about things like “meters,” “seconds,” or “the speed of light,” everyone else in the world is in agreement. In…

“I trust in nature for the stable laws of beauty and utility. Spring shall plant and autumn garner to the end of time.” –Robert Browning You’ve heard it said often that one thing remains true no matter what we discuss: that this, too, shall pass. The stars will eventually burn out, the galaxies will be…

The Physics Of Back To The Future (Synopsis)

Mr. Strickland: “I noticed your band is on the roster for the dance auditions after school today. Why even bother, McFly? You don’t have a chance. You’re too much like your old man. No McFly ever amounted to anything in the history of Hill Valley!” Marty McFly: “Yeah, well, history is gonna change.” –Back To…

When you take a large amount of mass and put it all together in a small volume of space, you fully expect gravity to do its thing, and eventually collapse things down as far as they’ll go. You can imagine that for compact masses with large distances between them — like planets in the solar system…

“Everyone has his dream; I would like to live till dawn, but I know I have less than three hours left. It will be night, but no matter. Dying is simple. It does not take daylight. So be it: I will die by starlight.” –Victor Hugo Whether you’re at rest or in motion, you can…

“It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge.” –Enrico Fermi At 13 TeV of proton-proton energy collisions, CERN’s Large Hadron Collider gives us the greatest number of the most powerful particle collisions ever seen on Earth, far more than any cosmic source from the Universe and…