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Peter Henlein

Reading time with Peter Henlein

Peter Henlein, a 16th-century locksmith and clockmaker from Nuremberg, Germany, is considered to be the architect of the first ‘watch’. Devices for reading time, like sundials, obelisks, and hourglasses were used to measure the passage of time since ancient ages. The credit for the first mechanical water clock goes to the Chinese genius Su Song, for…

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Invention of the thermometer

In about 1607, Galileo invented an instrument that could measure the rise of water in a glass tube with the rise in temperature. This instrument is called a thermoscope. Later, scientists modified it to add a scale to mark the rise of water. Subsequently, water was replaced with alcohol and mercury.  

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Invention of dynamite

Alfred Nobel was a Swedish industrialist, engineer and inventor. He was into construction and that led him to perform an experiment to find out ways of blasting rocks. His research led him to nitroglycerine. He found out that mixing silica with nitroglycerine would make it easy to handle. This mixture is known today as dynamite.  

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