Exciting journey of inventions

From relativity, coordinate geometry to a microwave oven or a piece of memo paper . it brings with it an interesting story about the "find out" journey of scientists.

Microwave

In 1947, the first microwave oven was officially launched.

The microwave oven came about by chance when the inventor Spenser found his candy bar melted when he stood near a radar station. With his in-depth technical knowledge, he understood that the machine's electromagnetic waves melted the candy bar. Since then, the idea of ​​an electromagnetic wave heating device has been clustered in Spenser's head. In 1947, the first microwave oven was officially launched.

Memo paper

The memo was found by Spencer Silver when he was trying to invent a good adhesive but couldn't .

Trying to invent a good type of adhesive but only finding a weak adhesive, Spencer Silver is useless. However, his 3M counterpart, Arthur Fry, proved the opposite, using the glue to stick a piece of paper marking the pages of the book. During a church trip, Fry's way of drawing attracted the attention of many people, from which memo paper became popular.

Velcro adhesive lock

The Velcro adhesive was born when George de Mestral saw the flowers sticking to his clothes with hook-shaped threads.

On a beautiful day, the inventor of George de Mestral walked with his dog in a forest near his home. When he returned, his clothes were covered with grass flowers. George wondered what made them stick so tightly to such clothes. Placing a flower under a microscope, he found every grass with a hook-shaped thread, thereby making it easy to attach to the clothes. The idea of ​​Velcro's sticky key has been around since then and has been used a lot in fashion.

Television

Philo Farnswort came up with the idea of ​​television when working on apple fields.

Philo Farnswort came up with the idea of ​​television when working on apple fields. The field plows made him think of a machine that could record images and display scanned electronic signals. In 1927, he studied and created the first electronic television.

Coordinate geometry

Geometry coordinates were born when Descartes accurately described the flight coordinates of the fly.

"I think means that I exist , " Descartes' famous phrase is often remembered more than his geometric coordinates. However, Descartes's concept of geometry was used more by humanity. Once a sick child, all day on the bed, Descartes noticed and watched a fly hovering above his head. With his intelligence, he accurately described the fly's flight coordinates by paying attention to its flight path from the wall to the ceiling. From there, coordinate geometry was born. Now, coordinate geometry is an indispensable subject in the curriculum of most countries in the world and is the foundation for many other scientific knowledge.

Archimedes and the Golden Crown

Perhaps Archimedes was not the first to be excited to find a discovery. But history notes that he was the first to say "Eureka" (found out). The story begins when King Hiero II, Greece, suspects that his crown is not made of gold. Archimedes was entrusted to learn the truth on condition that it did not damage the other crown.

Archimedes is famous for saying "Eureka" (found out).

Once, he brought the crown into the bath and discovered that he could check the crown with the amount of water it occupied. If the crown is made of another substance, the water mass will be less than it does entirely in gold. While happy, he ran away to tell the king in the absence of a cloth covering his body.

Chemical transmission of nerve impulse

In 1900, scientists proposed for the first time the idea of ​​chemical transmission of the nerve impulse, however, the idea was still a hypothesis. By 1920, one night near Easter, scientist Otto Loewi dreamed of a strange dream: he was able to demonstrate an experimental method of chemical transmission of nerve impulses.

Immediately, he got up, elated to scribble some letters and continued to sleep. Yet, when he woke up the next morning, he could not understand what he had written or drawn. Later that evening, he had the same dream again and this time he did not go to sleep and took more careful notes of his recipe. Thanks to this discovery, Loewi received the Nobel Prize in medical physiology in 1936.

Relativity

Once stopped at the traffic light near the clock tower of Bern, Einstein discovered the answer to questions he had long wondered about relativity. The relationship between the car - the traffic light pole and the vehicle with the clock tower is the clearest evidence for the relative and absolute of time. From there, the scientist draws conclusions: Time is not constant, it depends on the speed at which you move.