MAGIC SQUARE: Calculate A+B-C
[7559] MAGIC SQUARE: Calculate A+B-C - The aim is to place the some numbers from the list (7, 8, 11, 25, 26, 29, 51, 52, 55) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A+B-C. - #brainteasers #math #magicsquare - Correct Answers: 2
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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (7, 8, 11, 25, 26, 29, 51, 52, 55) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A+B-C.
Correct answers: 2
#brainteasers #math #magicsquare
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Ballpen in space

When NASA first started sending up astronauts, they quickly discovered that ballpoint pens would not work in zero gravity.
To combat the problem, NASA scientists spent a decade and $12 billion to develop a pen that writes in zero gravity, upside down, underwater, on almost any surface including glass and at temperatures ranging from below freezing to 300 C.
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Daniel Mazia

Born 18 Dec 1912; died 9 Jun 1996 at age 83.American cell biologist who was notable for his work in nuclear and cellular physiology. His research centered on the broad question of cell reproduction, especially the division and regulation mechanisms involved in mitosis (the process by which the chromosomes within the nucleus of a cell double and divide prior to cell division). Mazia is best known for his isolation (1951, with Japanese biologist Katsuma Dan) of the mitotic apparatus, the structure responsible for cell division. This brought understanding of the mechanisms of cell division and intracellular motility. A study in the early '60s on centrosomal reproduction, an until recently unappreciated structure, led to Mazia's interest in this cell organelle and the publication of a seminal paper.
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