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Find number abc

If cc48c - ca3bb = 8a23 find number abc. Multiple solutions may exist.

Correct answers: 28

The first user who solved this task is Nasrin 24 T.

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A Yogi Walked into a Pizza Parlor…

What did the Yogi say when he walked into the Zen Pizza Parlor?
"Make me one with everything."
When the Yogi got the pizza, he gave the proprietor a $20 bill. The proprietor pocketed the bill. The Yogi said "Don't I get change?"
The proprietor said, "Change must come from within."

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Optical pulsar announced

In 1969, the New York Times made public the news of the discovery a few days earlier of the first optical pulsar by astronomers at the University of Arizona on 16 Jan 1969. It was the result of a year's search using a stroboscopic technique. Flashes of light in the optical range were found coming from the same location in the Crab Nebula as a previously known pulsar emitting radio bursts. The rate of pulsation of the two signals was found to be the same, and thus presumed to be from a single star. Other observatories were immediately notified and the flashing was confirmed by the McDonald Observatory and by the powerful 84-inch reflector telescope at the Kitt Peak National Observatory in Arizona. The star was flashing at a rate of about 30 times per second, with intermediate flashes of lesser intensity.

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