Calculate the number 1553
[1868] Calculate the number 1553 - NUMBERMANIA: Calculate the number 1553 using numbers [8, 9, 3, 5, 28, 186] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 34 - The first user who solved this task is Djordje Timotijevic
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Calculate the number 1553

NUMBERMANIA: Calculate the number 1553 using numbers [8, 9, 3, 5, 28, 186] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 34
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #numbermania
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Photographer

A photographer for a national magazine was assigned to take pictures of a great forest fire. He was advised that a small plane would be waiting to fly him over the fire.
The photographer arrived at the airstrip just an hour before sundown. Sure enough, a small Cessna airplane was waiting. He jumped in with his equipment and shouted, "Let's go!" The tense man sitting in the pilot's seat swung the plane into the wind and soon they were in the air, though flying erratically.
"Fly over the north side of the fire," said the photographer, "And make several low-level passes."
"Why?" asked the nervous pilot.
"Because I'm going to take pictures!" yelled the photographer. "I'm a photographer, and photographers take pictures!"
The pilot replied, "You mean you're not the flight instructor?"

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John Mercer

Died 30 Nov 1866 at age 75 (born 21 Feb 1791).English chemist and industrialist who invented the mercerisation process for treating cotton which is still in use today and was a pioneer in colour photography. From age 16, and throughout his life, he investigated and developed chemical textile dyes. Late in his life, in 1844, he found that when cotton is treated with caustic chemicals, it became thicker and shorter - thereby stronger and shrink-resistant. Further, the cotton was more easily dyed, needed 30% less dye, more absorbant, and could be given an attractive silk-like lustre. He called his process mercerisation and patented it in 1850. Mercerisation was applied to many other materials, such as parchment and woolen fabric, and remains an important part of the cotton finishing process today.
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