What number comes next?
[4808] What number comes next? - Look at the series (7, 14, 42, 168, 840, ?), determine the pattern, and find the value of the next number! - #brainteasers #math #riddles - Correct Answers: 92 - The first user who solved this task is Djordje Timotijevic
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What number comes next?

Look at the series (7, 14, 42, 168, 840, ?), determine the pattern, and find the value of the next number!
Correct answers: 92
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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Once there was a golfer whose...

Once there was a golfer whose drive landed on an anthill. Rather than move the ball, he decided to hit it where it lay. He gave a mighty swing. Clouds of dirt and sand and ants exploded from the spot. Everything but the golfball. It sat in the same spot.
So he lined up and tried another shot. Clouds of dirt and sand and ants went flying again. The golf ball didn't even wiggle.
Two ants survived. One dazed ant said to the other, "Whoa! What are we going to do?"
Said the other ant: "I don't know about you, but I'm going to get on the ball."
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Armand-Hippolyte-Louis Fizeau

Died 18 Sep 1896 at age 76 (born 23 Sep 1819). French physicist who was the first to measure the speed of light successfully without using astronomical calculations (1849). Fizeau sent a narrow beam of light between gear teeth on the edge of a rotating wheel. The beam then traveled to a mirror 8 km/5 mi away and returned to the wheel where, if the spin were fast enough, a tooth would block the light. Knowing this time from the rotational speed of the wheel, and the mirror's distance, Fizeau directly measured the speed of light. He also found that light travels faster in air than in water, which confirmed the wave theory of light, and that the motion of a star affects the position of the lines in its spectrum. With Jean Foucault, he proved the wave nature of the Sun's heat rays by showing their interference (1847).
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