'Microsoft's Multitouch Coffee Table Display' makes this sound trivial. If you watch the videos (okay, I only watched one) this is actually fairly rad and involved a great deal of research to achieve.
Given 11 objects, identical in appearance, one of which is of a different weight (lighter or heavier), how can you determine which object is of a different weight using a simple pendulum style balance (ex. if object(s) on left hand side weigh more than object(s) on the right hand side, the left hand side goes down and the right hand side up, like a see-saw) only three times.
Problem:
11 object identical in appearance
1 of a different weight (lighter or heavier)
3 uses of the scale
determine which object is of a different weight (solution doesn't necessarily include determining if the object in question is lighter or heavier)
Although I found this puzzle very difficult (I may not be very clever), I did eventually solve it on my own.
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'Microsoft's Multitouch Coffee Table Display' makes this sound trivial. If you watch the videos (okay, I only watched one) this is actually fairly rad and involved a great deal of research to achieve.
Problem:
Although I found this puzzle very difficult (I may not be very clever), I did eventually solve it on my own.