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Old March 30th 17, 06:39 PM posted to
Bill Wright[_3_]
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Posts: 1,544
Default Hopeless at maths

I'm hopeless at maths, but I'm trying to get something across to an
intelligent child. So, if the distance from here to London (250km) is
represented by the thickness of a hair (0.2mm) how far is a light year?
It doesn't have to be a hair; it could be anything familiar and small.

It's 2.5 million light years to the Andromeda Galaxy; that's what we're