• Quick note - the problem with Youtube videos not embedding on the forum appears to have been fixed, thanks to ZiprHead. If you do still see problems let me know.

edward robert harrison

  1. Solitaire

    The Cosmic Box

    "Most photons in the universe belong to the cosmic background radiation that survives from the big bang. Their total number remains almost constant. The entropy per unit (call it s) equals 4/3T times the thermal energy aT4 per unit volume, where T is temperature and a the radiation energy...

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