Unfair Dice, also from the MAA. Notable because someone calculated the theoretical unfairness of dice that are unbalanced due to hollowed out pips. This would include most of the dice in my bag, since I prefer pips to numbers.
The Physics of Dice, this page has links to pictures of a dice-rolling machine custom built to test dice, and a bit more that might be interesting. This is what I was looking for in the first place!
And Finally ...
A bit more about this machine at Gizmodo
and Boing Boing is better still.
2 comments:
For practical play, rolling the dice in a cup is a good start to evening the odds out. Making the players roll them so that they bounce off one wall is even better, even if nowhere near perfect.
Good point. I try to give my dice "fair shake", but sometimes I see them them leaving my hand and barely tumble at all.
I'm currently experimenting with building my own dice-tower as a way to get well-tumbled rolls, I might have to post something about it.
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