How many hexagon can you fin...
[2300] How many hexagon can you fin... - How many hexagon can you find here? - #brainteasers #math #riddles - Correct Answers: 128 - The first user who solved this task is Roxana zavari
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How many hexagon can you fin...

How many hexagon can you find here?
Correct answers: 128
The first user who solved this task is Roxana zavari.
#brainteasers #math #riddles
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The Blessing – You may have lived this one

Joan invited some people to dinner. At the table, she turned to her six-year-old daughter and said, 'Would you like to say the blessing?'
'I wouldn't know what to say,' the girl replied.
'Just say what you hear Mommy say,' Joan answered.
The girl thought for a minute, then bowed her head and said, 'Lord, why on earth did I invite all these people to dinner?'

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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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