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| Brain
Teasers > Cork in the glass |
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| If a cork is put into a glass of water, the cork
will almost always drift to the side of the glass.
There is one simple way, however, to get the cork
to float in the center of the glass (the horizontal
center, not the vertical). What is it? Water, the
glass, and the cork are all that is required.
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Hide
Answer
| The reason that a cork drifts to the side of a
glass is that it floats to the highest point. Since
water "clings" to the glass, the highest
point is around the edge of the water. To get the
cork to float in the middle of the glass, all you
have to do is fill the glass as much as possible.
The water will form a convex shape above the glass,
with the highest point at its center. This is where
the cork will settle.
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