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Find number abc

If b87ca - 3aa48 = 3bc04 find number abc. Multiple solutions may exist.

Correct answers: 36

The first user who solved this task is Nílton Corrêa de Sousa.

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… and You Hired Him

Owner of a aircraft manufacturing company stopped by the aircraft testing airfield to check on the newest test pilot.
He asked the supervisor how the new guy was doing. “Terrible! He has already crashed four planes this week!”
Owner replied, “How is this possible? Where did he work before coming here?”
Supervisor said, “He designed Windows software for Microsoft.”

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James Nasmyth on the form of lightning

In 1856, James Nasmyth spoke “On the Form of Lightning” on the opening day of the 26th Meeting of the British Association at Cheltenham. He said that he wanted to call attention to the fact that Nature never showed a zig-zag dovetail form of lightning as often portrayed by painters and in other works of art. The true natural form was irregular curved lines, single or branched. He attributed the artists' error to the form of the thunderbolt in the hand of Jupiter, as sculptured by the early Greeks. He thought lightning mostly shot up from the earth to the cloud and often continued from the cloud downwards again to another distant part of the earth. The appearance of the lightning, he conceived, was of a rapidly shooting point of light, leaving on the eye the impression of the path it traced. Animated discussion followed.«[Image upper: artists' dovetail form of lightning. Lower: natural form. Illustrations from the Report of the Annual Meeting (1856).]

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