Thursday, November 19, 2009

Things to think about ...

... The 10 weirdest physics facts, from relativity to quantum physics.

Well, it looks more line none, really. But this impresses:
Atoms are 99.9999999999999 per cent empty space. As Tom Stoppard put it: "Make a fist, and if your fist is as big as the nucleus of an atom, then the atom is as big as St Paul's, and if it happens to be a hydrogen atom, then it has a single electron flitting about like a moth in an empty cathedral, now by the dome, now by the altar."
If you forced all the atoms together, removing the space between them, crushing them down so the all those vast empty cathedrals were compressed into the first-sized nuclei, a single teaspoon or sugar cube of the resulting mass would weigh five billion tons; about ten times the weight of all the humans who are currently alive.
I guess a materialist is someone who doesn't think the world adds up to much.


  1. I don't think you have to be a hardcore materialist to think THAT.

  2. Probably not. Though I myself think the world adds up to a very great deal indeed, especially now that I have entered into the final phase of my sojourn in it.