• Question: how much red blood cells does it take to fill a universe

    Asked by anon-193409 to Morwenna, Jamal, iainstaniland, Heidi, Emma, Carl on 13 Nov 2018.
    • Photo: Carl Heron

      Carl Heron answered on 13 Nov 2018:

      I suspect that no-one ever has tried to calculate that so here goes……OK, a red blood cell has an average volume of 100 microns cubed and the universe is 8.8×10 to the -26 meters, but the universe is expanding so….where’s my calculator……can’t find it….I’ll have to use my fingers… …6,7,8,9……..drat I lost count. Can you come back to me in about 32 years when I have finished counting?

    • Photo: Emma Crawford

      Emma Crawford answered on 13 Nov 2018:

      Seeing as we don’t have a definite answer for how big the universe is, I best guess would be to infinity and beyond!

    • Photo: Heidi Gardner

      Heidi Gardner answered on 13 Nov 2018:

      Lots and lots and lots and lots and lots and lots and lots.

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