INVENTIONS: how they made the world easier

What is an Invention & Discovery ?

Invention is something that is devised by human to reduce the human effort. A discovery, on the other hand, is something that existed but was not yet known. Some of the greatest inventions are explained below.

🚅 The first can opener :

    The first tin cans had to be opened by hammer and chisel. In 1855, a British inventor, Robert Yeates, developed this claw type of can opener. The blade cut around the rim of the tin using a seesaw levering action of the handle. Openers were given away with bully beef, hence the bull's head design was introduced around 1865.

🚅 Glass :

    Nobody knows when the process of glass making ( heating together soda and sand ) was first discovered, although the Egyptians were making glazed beads in c. 4000 BCE. In the first century BCE the Syrians probably introduced glassblowing, producing objects of many different shapes.

🚅 Scissors :

     Scissors were invented more than 3000 years ago, at about the same time in various places. Early types resemble tongs with a spring to push the blades apart. Like a seesaw, the scissors use the principle of the level to increase cutting power.

🚅 Locks :

      In the earliest known locks the key was used to raise pins or tumblers so that a bolt could be moved. Linus Yale, Sr. invented a pin tumbler lock in 1848. Linus Yale, Jr. improved upon his father's lock in 1861, using a smaller, flat key with serrated edges that is the basis of modern pin-tumbler locks. Yale developed the modern combination lock in 1862.

🚅 Zip :

       The zip fastener was invented by American engineer Whitcomb Judson in 1893. It consisted of rows of hooks eyes which were locked together by pulling a slide. The modern version, with interlocking metal teeth and slide, was developed from this by Gideon Sundback and patented in 1914.



Post a Comment

Popular Posts