Ann: After you’ve gone to the immense trouble of writing a book, having to sell it seems a bit much. My own personal best was always with the radio interviewers who began with, “So what’s the name of your book again?” So Richard, what’s the name of your book again? Oh, right, Gravity. What’s it […]
gravity
For the past two years, I have been following the voyage of OSIRIS-REx, a spacecraft headed to an asteroid called Bennu. Bennu is important for at least four reasons: Local space history may recorded in its rocks, which are about as old as the formation of the solar system. It is carbon-rich and scientists think […]
A neighborhood kid, maybe 10 years old, doesn’t have the usual relationship with gravity. I know it’s her even when I can’t see her clearly by the way she moves through space: even when she’s not running, just walking, she looks like she might re-connect with the earth but also she might not. She reminds […]
1) The Lucasian throne is the Lucasian Chair, a funded and highly honored academic position at Cambridge University that is famous, partly because it’s currently held by Stephen Hawking and partly because its first holder was Isaac Newton. 2) Who, as you know, invented/discovered the law of gravity. Translating that equation up there, the force […]
From “On Being the Right Size,” by J.B.S. Haldane: “You can drop a mouse down a thousand-yard mine shaft; and on arriving at the bottom, it gets a slight shock and walks away. A rat is killed, a man is broken, a horse splashes.” Recently, a couple of my friends have fallen. One, a woman, […]
My neighborhood, as I’ve mentioned, is an interesting place: At our weekly potlucks, we speculate on everything from the number and sex of the next batch of goat kids (money’s on two girls) to the efficacy of bourbon as mouthwash (not promising, sadly). Last week, a guest announced that he was on his way to a […]
I was going to explain the connection between gravity, general relativity, and time. But I understand less than half of it and anyway, that’s not what our boy AG is really talking about here. He’s talking about coming to grand conclusions based on understanding less than half of something. And the guy he’s quoting, […]
This is the universe at present. You’re seeing not the light but the dark — you knew that most of the universe’s matter is dark, right? — and its motions. Not until the far right end are you seeing the light. Go ahead and clickety click all over this; zoom it in and out, drag it around. […]