Calculate the number 1924
[531] Calculate the number 1924 - NUMBERMANIA: Calculate the number 1924 using numbers [9, 5, 9, 1, 21, 106] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 40 - The first user who solved this task is Sanja Šabović
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Calculate the number 1924

NUMBERMANIA: Calculate the number 1924 using numbers [9, 5, 9, 1, 21, 106] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 40
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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I Am Not Forgetful

Three ladies were discussing the travails of getting older. One said, "Sometimes I catch myself with a jar of mayonnaise in my hand, while standing in front of the refrigerator, and I can't remember whether I need to put it away, or start making a sandwich."
The second lady chimed in with, "Yes, sometimes I find myself on the landing of the stairs and can't remember whether I was on my way up or on my way down."
The third one responded, " Well, ladies, I'm glad I don't have that problem. Knock on wood," as she rapped her knuckles on the table, and then said, "That must be the door, I'll get it!"
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Fred Whipple

Born 5 Nov 1906; died 30 Aug 2004 at age 97.Fred Lawrence Whipple was an American astronomer who proposed the “dirty snowball” model for comet nuclei. In the 1930s, using a new, two-station method of photography, he determined meteor trajectories and found that nearly all visible meteors are made up of fragile material from comets, and that none come from beyond the solar system. Whipple suggested (1950) that comets have icy cores inside thin insulating layers of dirt, and that jets of material ejected as a result of solar heating were the cause of orbital changes. This model was confirmed in 1986 when spacecraft flew past comet Halley. Whipple's work on tracking artificial satellites led to improved knowledge of the shape of the earth and greatly improved positions on earth.
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