Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 795
The first user who solved this task is Дејан Шкребић.
#brainteasers #math #riddles
Richard Anthony ProctorDied 12 Sep 1888 at age 51 (born 23 Mar 1837).English astronomer who first suggested (1873) that meteor impacts caused lunar craters, rather than volcanic action. He studied the motion of stars, their distribution, and their relation to the nebulae. In 1867 he prepared a map of the surface of Mars on which he named continents, seas, bays and straits (in the same manner that Riccioli used on his map of the moon). However, he did not perceive "canals" on the surface, which later Schiaparelli identified. Proctor participated in expeditions of 1874 and 1882 to observe the transit of Venus. He was very successful popularizing astronomy by his writings in books, periodicals, and lectures he gave as far abroad as Australia and America (where he stayed after 1881).« |