Calculate the number 685
[4547] Calculate the number 685 - NUMBERMANIA: Calculate the number 685 using numbers [6, 1, 4, 4, 63, 175] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 23 - The first user who solved this task is Djordje Timotijevic
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Calculate the number 685

NUMBERMANIA: Calculate the number 685 using numbers [6, 1, 4, 4, 63, 175] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 23
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #numbermania
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A thin girl

I met a beautiful girl last night, but she was rather thin. I mean this is a skinny girl. You never saw anybody so thin. She turned sideways you didn’t see her. I took her to a restaurant and the maître'd said to me, 'Can I check your umbrella?'

Mel Brooks (June 28 1926-)

Picture: Kim Kulish / AFP

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Ejection seat first used

In 1942, the first use of an ejection seat to save a pilot was made. Helmut Schenk, a German test pilot, required its use when his Heinkel He 280 refused to separate from the tow aircraft due to the cable release mechanism icing up. As a precaution, Schenk ejected and landed safely. The tow was being made because the He-280 was powered by two Argus pulse-jets that required a high forward speed to start up. The first ejection seat was made by Heinkel, for the He 280. It was powered by compressed air, and accelerated the pilot upwards at between seven-g and nine-g. The He-280 was the first twin-jet engined aircraft and the first jet aircraft to go beyond prototype stage. The earliest known experiment to produce an airplane ejection seat took place on 12 Dec 1912.[Image: Heinkel He-162 ejection seat.]
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