Sunlight travels at a speed of 3 kilometers per second. It is easy to measure the speed of vehicles running on the ground, flying planes or birds. But measuring the speed of light is a difficult task. The ray of light cannot be caught or stopped. Its motion is not even visible to the naked eye. Many scientists have tried to measure the speed of light.
In the year 18 AD, a scientist named Olos Romer studied the satellites of Jupiter and declared that the speed of light is 314,000 kilometers per second. Then, in the 19th century, a scientist named Armand Fizu experimented for the first time and measured the speed of light. Fizu arranged the two mirrors facing each other so that the toothed wheel kept rotating. The ray of light passes through the teeth of the wheel and falls on the mirror and is reflected from there and falls on the opposite mirror. By calculating the speed of rotation and the reflection in the mirror, he declared the speed of light to be 215,000 kilometers per second.
Armand Fizu was born on September 9, 1917 in Paris. Her father was a doctor and professor. Fizu was also sent to study medicine but due to poor health he left the study and focused on physics. He was busy studying light. He invented photography of a constantly moving object. It was released after discovering the speed of light. Is. He died in 19.
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