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Find number abc

If 7ab05 + 5a1b7 = 1c7102 find number abc. Multiple solutions may exist.

Correct answers: 0

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Unlocking Your Car

Two blondes were recently observed in a parking lot trying to unlock the door of their Mercedes with a coat hanger. Here is their dialogue:
Blonde One: I can't seem to get this door unlocked!
Blonde Two: Well, you'd better hurry up and try harder! it's starting to rain, and the top is down!

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Heinrich Barkhausen

Born 2 Dec 1881; died 20 Feb 1956 at age 74.Heinrich Georg Barkhausen was a German physicist who discovered the Barkhausen effect (1919), a principle concerning changes in the magnetic properties of metal. His work in acoustics and magnetism led to the discovery that magnetization affects whole domains of a ferromagnetic material, rather than individual atoms alone. He discovered that a slow, smooth increase of a magnetic field applied to a piece of ferromagnetic material, such as iron, causes it to become magnetized, not continuously but in minute steps. With Karl Kurz, he developed the Barkhausen- Kurz oscillator (1920) for ultrahigh frequencies (forerunner of the microwave tube), leading to understanding of the principle of velocity modulation. He is also known for experiments on shortwave radio transmissions.

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