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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (8, 12, 15, 32, 36, 39, 63, 67, 68, 70) 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: 4

#brainteasers #math #magicsquare

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Tau neutrino

In 2000, an international collaboration of scientists at the Department of Energy's Fermi National Accelerator Laboratory announced the first direct evidence for the subatomic particle called the tau neutrino, the third kind of neutrino known to particle physicists. They reported four instances of a neutrino interacting with an atomic nucleus to produce a charged particle called a tau lepton, the signature of a tau neutrino. The tau (rhymes with "now") neutrino is the third neutrino of the Standard Model of elementary particles, a theoretical description that groups all particles into three generations. Experimenters identify them by recording neutrino interactions. First generation electron neutrinos were created in 1956, and second generation muon neutrinos in 1962.

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