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Quote by Neil deGrasse Tyson

“There are more molecules of water in a cup of the stuff than there are cups of water in all the world's oceans. Every cup that passes through a single person and eventually rejoins the world's water supply holds enough molecules to mix 1,500 of them into every other cup of water in the world. No way around it: some of the water you just drank passed through the kidneys of Socrates, Genghis Khan, and Joan of Arc. How about air? Also vital. A single breathful draws in more air molecules than there are breathfuls of air in Earth's entire atmosphere. That means some of the air you just breathed passed through the lungs of Napoleon, Beethoven, Lincoln, and Billy the Kid. Time to get cosmic. There are more stars in the universe than grains of sand on any beach, more stars than seconds have passed since Earth formed, more stars than words and sounds ever uttered by all the humans who ever lived.”

Quote by Neil deGrasse Tyson

Work

Astrophysics for People in a Hurry

This book provides a succinct and accessible introduction to the fundamental principles of astrophysics, covering topics such as the structure of the universe, black holes, and the nature of dark matter. more

Author

Neil deGrasse Tyson
Neil deGrasse Tyson

Neil deGrasse Tyson is an American astrophysicist, science communicator, and television personality. Born on October 5, 1958, he is renowned for his deep understanding of the cosmos and his ability to popularize scientific knowledge. Tyson grew up in New York City and earned a Ph.D. in astronomy from Columbia University. He served as the director of the Hayden Planetarium at the American Museum of Natural History and has been a member of various scientific committees. more

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“You think the universe was always here? Douglass, everything has an origin. Maybe you're both right. Things don't get created out of nothing. Creations are made outta ingredients. Even ingredients are made out of ingredients. Think about it: Universes are made of galaxies are made of stars are made of gases are made of atoms are made of quarks are made of universes... for all we know. Cool. Maybe there's an infinite number of big bangs, each one creating a universe that forms a single quark...which interacts with other quarks to build a larger universe. And then that universe fits inside a singularity that explodes into another big bang becoming another quark. Makes sense, but... it had to start at some point, right? Why? We're all basically apes with language and clothes. Maybe we think there has to be a "start" 'cause human brains are just too primitive to comprehend infinity. "Creation" happens, but it's not a "start". It's a coming together of what always was to make what always will be. That's a lot like the "turtles all the way down".”

“In honors physics, I learned that Scottish scientist James Clerk Maxwell observed how electrical fields and magnetic fields - both immobile by themselves - would move when combined. They would oscillate, and radiate at fantastic speeds. They would become electromagnetic waves. This was the birth of radio. Physicist Heinrich Hertz later measured the speed of those waves to be 3.0x10^8 meters per second through a vacuum. Exactly the same as the speed of light. This proved that radio waves were a form of LIGHT invisible to our eyes, just like infrared. It also proved that light itself was an electromagnetic wave. Such waves differ from mechanical waves, because they don't have to travel through a medium. Electromagnetic waves can travel through the vacuum of space. But some still believe - as scientists did in the years following the Civil War - that there's a universal, fundamental substance called the "Aether" that undergirds all of existence. And that the Aether is the medium through which electromagnetic waves travel. As best we know, the Aether does not exist. But to those who believe in it, the Aether doesn't just fill the universe. The Aether IS the universe. I think I was taken off guard by their asking me questions. Usually there guys reflexively tell me I'm wrong. Or they outright ignore my points (until one of them repeats what I said as if THEY thought of it). My hypothesis is that, wittingly or not, they see minorities as electromagnetic waves. And they see themselves as the medium through which our experiences, our perspectives, our opinions -and even our PRESENCE - propagate. Everything about us is valid only to the extent that THEY are willing to entertain it. They seem to feel that they're as foundational and as supreme as the Aether.”