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Making Sense of Big Numbers


To see a World in a Grain of Sand
And a Heaven in a Wild Flower,
Hold Infinity in the palm of your hand
And Eternity in an hour.

  William Blake, from
   "Auguries of Innocence"

1015Grains of sand on a beach
1015Ants in the world
1017Seconds since big bang
1021Diameter of the galaxy (m)
1022Stars in the universe
1026Diameter of the Universe (m)
1047Seconds till all protons decay*
1050Atoms in the earth
1066Atoms in the galaxy
1078Atoms in the observable universe

This entry was posted by Blogpur, on Saturday, July 29, 2006. You can leave your response.

“Making Sense of Big Numbers”

  1. Anonymous Anonymous Says:
    8:40 PM  

    Do protons decay ? It's only a speculation from one those GUTs. Isn't ?

  2. Anonymous Anonymous Says:
    8:43 PM  

    Indeed it is just a GUT. That's why I had the star next to it, but I wrote this in MS Word, it did not translate well over on blogger.
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