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Braingle » ‘Bronze Ball Contest’ Brain Teaser

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Braingle » ‘Bronze Ball Contest’ Brain Teaser

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In Mrs. Farstaff’s Science class, they’re holding a contest. She has a glass bottle, and a bit bronze ball, the scale of which is the very same as the opening within the bottle. Mrs. Farstaff is giving the coed who can put the ball within the bottle, with out breaking the glass or destroying the ball one way or the other, an iPOD.

In her room there’s a microwave, petroleum jelly, a range, and a freezer.

Six of her seven college students tried this feat, however with no luck.

After the sixth pupil, the seventh, Geoff, comes as much as the bottle and the ball. He thinks of utilizing one of many instruments in Mrs. Farstaff’s room at his disposal, and makes use of one (not the jelly because it was already confirmed to not work) and 5 hours later, will get the ball within the bottle and his free iPOD.

How did he do it?

Answer

He put the little ball within the freezer for 5 hours, and left the bottle exterior. The bronze ball will contract within the chilly of the freezer, however the opening of the bottle would be the identical measurement because it was. This makes it straightforward for the ball to enter the bottle.

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