BRAIN TEASERS

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What a winning combination?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.

Correct answers: 2

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Why are women like telephones?

Women are like telephones ... They love to be held. They love to be talked to. But, if you press the wrong button, you're DISCONNECTED.

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Brain Teasers

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Saturn's rings

In 1895, a spectrogram made by American astronomer James Keeler proved that the rings of Saturn were indeed composed of meteoric particles, as predicted by James Maxwell. If the rings were solid, observations would show uniform rotation. However, Keeler's spectrogram of light reflected from Saturn's rings showed a Doppler shift indicating a variation in radial velocity. Thus, particles in the inner part of a ring, closer to Saturn, move at a different rotational speed from those in more distance parts of a ring, as predicted by Kepler's 3rd law. Keeler publishedA Spectroscopic Proof of the Meteoric Constitution of Saturn's Rings in the May 1895 issue of Astrophysical Journal, vol. 1, p.416, the journal he co-founded with George E. Hale.«[Image: artist's illustration of Saturn's rings]

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