50 inventions that change the world

Abacus - 190 AD The abacus use was recorded in Chinese history books for the first time in 190 AD. Chinese tools are considered the fastest calculation method for centuries, and under the hands of proficient use, it can produce results faster than electronic computers.

Aspirin medicine - 1899 . Greek medicine Hippocrates - the ' father ' of modern medicine - is the first to discover the use of acetylsalicylic acid to treat many diseases. In the late 19th century, German chemist Felix Hoffman perfected this drug and named it aspirin.

Barcode - 1973. Being ' conceived ' in 1952 by a student in Philadelphia (USA) as a visible trailer, today bar codes are present on almost every commodity we buy.

Bicycle - 1861. Originally created as a hobby for the elite of the 1820s, ' iron horse ' quickly became a classless transport vehicle.

Condoms - 1640. Egyptians used condoms 3,000 years ago. Italian gynecologist Gabriele Falloppio in the 17th century supported the use of this contraceptive tool to prevent sexually transmitted diseases.

Refrigerator - 1834. American inventor Jacob Perkins was the first to describe how the pipes were filled with volatile chemicals that could chill food.

Internal combustion engine - 1859. ' Father ' of internal combustion engine is Belgian inventor Étienne Lenoir. It is an improved version of the steam engine.

Laser machine - 1960. Physicist Theodore Maiman invented the first laser generator after he discovered the ruby ​​crystal emitted 'brighter than the Sun' light.

Round Bulb - 1848. In fact, Joseph Swan developed the incandescent light bulb before American businessman Thomas Edison but then both worked together to create an indispensable lighting device in every family.

Drive lock - 2000 years ago CN. 4,000 years ago, Egyptian residents were the first to use a drive and key to preserve furniture.

Microchip - 1958. American engineer Jack Kilby created the world's first integrated circuit that later changed the world of computing.

Mobile phone - 1947. Bell Laboratories in Missouri (USA) is the first mobile phone service provider.

Paper - 105 AD 2,000 years ago, Chinese people began to use bark, bamboo fibers, hemp and flax to produce paper. However, it took many centuries to cover the whole world.

Printer - 1454. The Chinese are the first printing press in the world but the goldsmith Duc Johannes Gutenberg pioneered the construction of printers.

Internet - 1969. The idea of ​​a global communications network was devised by the US Department of Defense in the 1960s. In 1989, British engineer Tim Berners-Lee invented the Internet with the World Wide Web.

-1951 birth control pills. The birth control pill was prepared by chemist Carl Djerassi in 1951 but it was not published in England until 1962.

Wheel - 3,500 BC. The wheel deserves to be at the top of the list of 'great inventions'. The first photograph of the wheel in Sumeria (present-day Iraq) dates back to 3,500 and soon it "rolled" to the West.

Zipper -1913. In 1913, Swedish engineer Gideon Sundback built the first cheese to install boots.

The remaining inventions include barbed wire (1873), bows (30,000 years before CN), CDs (1965), pacemakers (1958), credit cards (1950), drums (12,000 BC) ), dynamite (1867), hook (30,000 BC), global positioning system (1978), iPod digital music player (2001), water kettle (1891), microscope (1590), plow (100 years later), elastic band (1845), sewing machine (1830), eyeglasses (1451), syringe (1844), telescope (1608), parasol (2,400 BC), machine listen to music walkman (1979), weight scale (5,000 BC), cannon (13th century), bra (1913), television (1925), telephone (1876), computer (1977 ), button (1235), compass (1190), battery (1800), camera (1826), radio (1895), matchstick (1826).

PINK SNOW