Answers about Inventions > 자유게시판

Ultraviolet light was not invented by a single individual. It is a natural form of electromagnetic radiation that is present in sunlight. Its discovery and prop
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What is the reason for high frequency in dc motor?


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High frequency in a DC motor can be caused by factors such as mechanical resonance, bahçe solar led electrical noise, or incorrect control signal frequency. These can lead to i
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Who invented night vision technology?


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Night vision technology was developed by a variety of researchers and engineers over the years, with significant contributions from individuals such as Vladimir
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What inventions resulted from space exploration?


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Some inventions that resulted from space exploration include memory foam, scratch-resistant lenses, and water purification systems. These technologies were init
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Where was the first sundial made and used?


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The first sundial is believed to have been made and used in Ancient Egypt around 1500 BC. Sundials were used to measure time by tracking the movement of the sun
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Who was the French inventor who made the first flight in a hydrogen balloon in 1783?


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Jacques Charles (1746-1823), along with the brothers Anne-Jean Robert (1758-1820), and Marie-Noël Robert (1760-1820), launched the first unmanned hydrogen
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Who invented hawk eye?


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Hawk-Eye technology was invented by Dr. Paul Hawkins in 2001. It is a complex computer system used in sports to visually track the trajectory of the ball and ma
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What invevtion was made by david bushnell?


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David Bushnell invented the first military submarine called the Turtle in 1776 during the American Revolution. The Turtle was a one-man submersible vessel desig
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Who invent the first stop light?


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The first traffic light was invented by Garrett Morgan in 1923. It had only red and green signals and was manually operated.