Foo Fighters - Walking After You

INVENTIONS

INVENTIONS

Phone

The phone is a device telecommunication designed to transmit acoustic signals by means of electrical signals at a distance.

For a long time Alexander Graham Bell was considered the inventor of the telephone, along with Elisha Gray. However Graham Bell was not the inventor of this device, but only the first to patent it. This happened in 1876. The June 11, 2002 the U.S. Congress adopted resolution 269, which recognized by the inventor of the telephone was Antonio Meucci, who called it teletrofono, not Alexander Graham Bell. In 1871 Meucci only could, for economic difficulties, present a brief description of his invention, but not enter the patent before the Patent Office of the United States.

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The June 11, 2002 the U.S. Congress adopted Resolution 269, by acknowledging that the inventor of the telephone had been Antonio Meucci and not Alexander Graham Bell. The resolution, adopted unanimously, U.S. officials estimate that "the life and work of Antonio Meucci should be legally recognized, and his work in the invention of the telephone should be admitted." According to the text of this resolution, Antonio Meucci installed a rudimentary telecommunications device from the basement of his home in Staten Island (New York) and his wife's room, on the first floor.

Electric lamp

A light bulb is a device that produces light from electrical energy , this conversion may be performed by various methods such as heating by Joule effect of a strand metal, by fluorescence of certain metals to an electrical discharge or by other systems such uncurious. At present it has the technology to produce light with efficiencies of 10 to 70%.

The invention of the first electric incandescent lamp is generally attributed to Thomas Alva Edison presented the October 21, 1879 a practical and viable lamp, which shone for 48 hours straight. The January 27, 1880 was granted the patent, number 223,898. Other inventors have also developed models that worked in the laboratory, including Joseph Swan, Henry Woodward, Mathew Evans, James Bowman Lindsay, William Sawyer and Humphry Davy. Remember that the German, Heinrich Göbel had already registered their own incandescent light bulb in 1855, long before so that Thomas A. Edison. Later, but before that Edison, the July 11, 1874 he was awarded the Russian Aleksandr Lodygin Patent No. 1619 for an inc andescent bulb. The Russian inventor used a filament carbon.

The electric lamp is one of the most inventions used by man since creation to date. According to a ranking of the magazine Life is the second most useful inventions of the nineteenth century; not always.

The bicycle was invented by Karl von Drais in 1817

Bicycle

The bicycle's invention has had an enormous effect on society, both in terms of culture and of advancing modern industrial methods. Several components that eventually played a key role in the development of the automobile were initially invented for use in the bicycle, including ball bearings, pneumatic tires, chain-driven sprockets, and tension-spoked wheels.

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The dandy horse, also called Draisienne or laufmaschine, was the first human means of transport to use only two wheels in tandem and was invented by the German Baron Karl von Drais. It is regarded as the modern bicycle's forerunner; Drais introduced it to the public in Mannheim in summer 1817 and in Paris in 1818. Its rider sat astride a wooden frame supported by two in-line wheels and pushed the vehicle along with his/her feet while steering the front wheel.

The first mechanically-propelled, two-wheeled vehicle may have been built by Kirkpatrick MacMillan, a Scottish blacksmith, in 1839, although the claim is often disputed. He is also associated with the first recorded instance of a cycling traffic offense, when a Glasgow newspaper in 1842 reported an accident in which an anonymous "gentleman from Dumfries-shire... bestride a velocipede… of ingenious design" knocked over a little girl in Glasgow and was fined five shillings.

 

Telescope

Telescope is called (the Greek τηλε 'away' and σκοπέω, 'note') to the optical instrument for viewing distant objects in much more detail than the naked eye by capturing electromagnetic radiation , such as light . It is an essential tool in astronomy, and every development or refinement of this instrument has allowed advances in our understanding of the Universe.

Thanks to the telescope since Galileo Galilei in 1610 used it to look at the Moon, Jupiter and stars-humans could finally begin to know the true nature of celestial bodies that surround us and our location in the universe.

The real inventor was Juan Roget.

Galileo Galilei, on receiving news of this invention, decided to design and build one. In 1609 he was the first recorded astronomical telescope. Thanks to him, made ​​great discoveries in astronomy, among which observation, January 7, 1610, four of the moons of Jupiter to revolve around the planet.

Then known as the spy lens, the name "telescope" was proposed by the Greek mathematician Giovanni Demisiani the April 14, 1611, at a dinner in Rome in honor of Galileo, a meeting in which attendees could observe the moons of Jupiter by the apparatus that the famous astronomer had brought.

Several types of telescope: refractors , which use lenses, reflectors , which have a concave mirror instead of the objective lens and reflectors , which have a concave mirror and a correcting lens also holds a secondary mirror. The reflecting telescope was invented by Isaac Newton in 1688 and was an important advance over telescopes of his day to easily correct chromatic aberration property of refracting telescopes.

Dynamite

Dynamite was invented by Alfred Nobel in 1867, quickly replaces nitroglycerin for industrial, mining, and weapons. It plays a very important role in work such as digging mountains, road construction, demolition and generally any public work that requires the movement of rock masses.

Dynamite, like all high explosives, is very dangerous and is therefore restricted substance use, although it has been extensively replaced by plastic explosives in which the explosive substance is stabilized by mixing it with a plasticizer instead of diatomaceous earth. The basis of nitroglycerin has been largely replaced by dinitroglicol (Goma-2 ECO) or trinitrotoluene (Tytadine). For industrial use is also widespread use of RDX, also in the form of plastic explosive under the names C-3 and C-4 under formulation.