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Leela tulugu

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Find the next number in this series: 5, 7, 12, 19, 31, 50, ?

Jacques Cassini

Born 18 Feb 1677; died 16 Apr 1756 at age 79.French astronomer whose direct measurement of the proper motions of the stars (1738) disproved the ancient belief in the unchanging sphere of the stars. He also studied the moons of Jupiter and Saturn and the structure of Saturn's rings. His two major treatises on these subject appeared in 1740: Elements of Astronomy and Astronomical Tables of the Sun, Moon, Planets, Fixed Stars, and Satellites of Jupiter and Saturn. He also wrote about electricity, barometers, the recoil of firearms, and mirrors. He was the son of astronomer, mathematician and engineer Giovanni Cassini (1625-1712) with whom he made numerous geodesic observations. Eventually, he took over his father's duties as head of the Paris Observatory.«[Different sources give different dates of birth and death. See this note.]

Pretending to be happy

Pretending to be happy: Raise your hand  if you have been acting like you are all ok, but inside you are really not.
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