The World Inventions & Discoveries

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Asalamu Aleykom Warahmatu Allahi Wabarakatu ( peace be upon you )
All Msoms members and visitors as well
Today I am going to introduce to you some well-known inventors and discoverers of most gadgets and machines that we have today
Then let us go to them briefly and quickly to get the benefit

Calculator

Inventor:Blaise Pascal (1623 -1662)q

Pascaline by Pascal in 1652

Pascal began to work on his calculator in 1642, when he was just 19 years old. He had helped his father in doing his job . He invented a calculator that maybe reduce his father's workloads of doing taxes' work

Dynamite

Inventor: Alfred Noble

He studied the idea of Nitroglycerin that invented by Ascanio Sobrero in 1846 and he found out that this matter in its natural liquid state is very volatile and he thought about it and he had a resultant of mixing nitroglycerine with silica that would turn the liquid into a malleable paste, which results with dynamite

Important misconception makes people think that the known TNT is same as Dynamite ,they are in fact somehow different from each other even all of them are highly explosive. The Dynamite is an absorbent mixture soaked in nitroglycerin, then compacted into a cylindrical shape and wrapped in paper ,whereas TNT is chemical compound called 2,4,6-trinitrotoluene

TNT is a chemical structure
used as an explosive







Lightning Rod

Inventor :Benjamin Franklin (1706-1790)

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The lightning rod is invented by Benjamin Franklin in 1752 and it protects the buildings and ships from lightning damage ,it works as shown in top moving figure

Eyeglasses

Inventor: Roger Bacon

eyeglasses originated in the Far East or in the West. It appears that the eyeglasses used by the Chinese were for adornment or supposed magical powers and contained colored glass, not correcting lenses. Roger Bacon, the medieval champion of experimental science, made the first recorded reference to the magnifying properties of lenses in 1262

Barometer

Inventor: Evangelista Torricelli

Torricelli invented the mercury barometer , he used the mercury , that 14 times heavier than water. He created a tube approximately one meter long , sealed at the top, filled it with mercury, and set it vertically into a basin of mercury. The column of mercury fell to about 76 cm, leaving a Torricellian vacuum above. As we now know, the column's height fluctuated with changing atmospheric pressure