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Find number abc

If 2a4bb - 1b7a3 = 106ac find number abc. Multiple solutions may exist.

Correct answers: 0

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Everyone on a passenger ship c...

Everyone on a passenger ship could see a bearded man on a small island, shouting and desperately waving his hands.
"Who is that man?" a passenger asked the ship's captain. "Why is he so upset?"
"I have no idea," the Captain replied, "but, every year when we pass by here, he goes crazy."

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Giacobini-Zinner comet

In 1900, Michel Giacobini in France discovered a comet, which was rediscovered by a German, Ernst Zinner, on 23 Oct 1913, and since named the Giacobini-Zinner comet. It returns to the vicinity of the earth every six and two-thirds years. This comet became the first to be visited by a spacecraft. On 11 Sep 1985, the International Cometary Explorer (ICE) flew through its gas tail, 7,800-km downstream from the nucleus, at a speed of 21 km/sec. The nucleus was estimated to be 2.5-km across at its widest diameter. Instruments detected carbon monosulfide and hydroxyl molecules in the comet. The comet is the progenitor of the Draconid meteor shower, visible annually in early October, which produced intense meteor displays in 1933 and 1946.

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