The Beginning of the 10 Great Inventions

Famous inventions such as hair dryers, radios, refrigerators. have continuously changed over time, some of which have no trace of the time they were born.

Hairdryer

The first hair dryer was invented in 1890 by French hairstylist Alexander Godefroy. This is a giant sitting device, one end attached to the chimney of a gas stove and fixed in place to create heat, dry hair.

But today's dryers are very compact, easy to carry around.

Sanitary napkin

In fact, women have been using tampons for thousands of years. The oldest printed medical document, Papyrus Ebers, states that the first products made of soft, absorbent papyrus were invented by Egyptian women in the 15th century BC.

Computer mouse

In the mid-1940s, Professor Ralph Benjamin while working for the British Royal Navy invented a device that functioned like a computer mouse with a trackball, supporting a fire control radar planning system. force.

After much tinkering and improvement, he introduced the "Roller Ball" to the public, a product with almost the same function as a standard mouse, designed with an outer ball that will in turn act on the mouse. two rubber coated wheels inside.

Toaster

The technical problem of the electric toaster was the development of the heating element. This was solved in 1905 by Albert Marsh, who designed an alloy of nickel and chromium for the heating element. But this product has a simple design, without a protective frame, easily dangerous for young children.

Compared with early devices, today's electric toasters are compact, convenient and highly safe.

Earphone

In the 1890s, the first listening device was manufactured by a British company called Electrophone, built by French engineer Ernest Mercadier. The device allows customers to connect to live performances in theaters and opera houses across London.

Fridge

The ancient Persians had a very unique way of making refrigerators, when creating a cooling device in the middle of a hot desert. They call this type of cabinet "Yakhchal".

In the 1755s, Scottish professor William Cullen invented the first artificial refrigerator. They are compact and easy to transport.

Watch

The world's first watch was made by Peter Henlein from Nuremberg, Germany in 1505 and still works today. The device looks like a small gilded bronze ball, designed in the oriental style, powered by mechanics.

But today, electronic wearable devices, which integrate many features, are chosen by young people.

Hair trimmer

Manual hair clippers were invented between 1850 and 1890 by Nikola Bizumić, a Serbian barber. There are many alternative devices available today, but some barbers in Western countries continue to use the antique product for trimming.

Television

The method of scanning pictures on television was invented in the early 19th century. From 1843 to 1846, the inventor Alexander Bain introduced the image duplicator.

The first version of electronic television was invented by the German physicist Ferdinand Braun in 1897 and was called the "Braun" tube - an electronic vacuum lamp containing one or more electron guns, and a screen phosphorescence. They are used to accelerate and deflect beams of electrons into the screen to create images.

Portable music player

The world's first semiconductor phonograph models were developed in 1955, using batteries to provide power. By the 1960s, portable tape recorders had become commonplace.

Nowadays, portable music players are usually built into mobile phones.