Nephew Of Current - Alessandro Volta

Alessandro Volta is one of the most famous Italian physicists who is highly regarded for his invention of the electric cell as well as the 1777 discovery of methane.

Early life and works

Volta was born in Como, a town in present-day northern Italy (near the Swiss border) on February 18, 1745. In 1774, he became a professor of physics at the Royal School in Como. 

A year later, he improved and popularized the electrophorus, a device that produced static electricity. His promotion of it was so extensive that he is often credited with its invention, even though a machine operating on the same principle was described in 1762 by the Swedish experimenter Johan Wilcke.

Volta was raised in a strict Catholic family. He got his early education from a Jesuit school. He was adored by his teachers who thought Volta had all the abilities to become a good Jesuit priest.

In the years between 1776–78, Volta studied the chemistry of gases. He discovered methane after reading a paper by Benjamin Franklin of America on "flammable air", and Volta searched for it carefully in Italy. In November, 1776, he found methane at Lake Maggiore, and by 1778 he managed to isolate methane. He devised experiments such as the ignition of methane by an electric spark in a closed vessel. Volta also studied what we now call electrical capacitance, developing separate means to study both electrical potential (V ) and charge (Q ), and discovering that for a given object, they are proportional. This may be called Volta's Law of capacitance, and it is likely that for this work the unit of electrical potential has been named the volt.

Volta was very keen about studying electricity which was in its earliest stages at the time. He envisioned that there is a net neutral condition in a body in which all electrical attractions are neutralized. This effect could be transformed by some external source which later changes the relative configuration of the particles. Volta believed that in such an electrically unstable state, the body gets electrically charged.

In 1779 he became a professor of experimental physics at the University of Pavia, a chair that he occupied for almost 25 years. In 1794, Volta married an aristocratic lady also from Como, Teresa Peregrini, with whom he raised three sons: Giovanni, Flaminio and Zanino.

Contributions and Achievements

With this rather weak concept of an electrically charged body, Volta experimented extensively to study electrical induction. He was successful in creating some devices that were able to store electric charge. Subsequently, he gained fame and received grants to visit other countries. He also saw other famous scientists around this time. Volta accepted a teaching job at the University of Pavia where he stayed for about forty years.

Influenced by the efforts of Dc Saussure, Volta developed an interest in atmospheric electricity. He made certain modifications to the electrical instruments made by the Swiss geologist, making them more refined and precise. He came up with methods to measure the so-called “electrical tension”, later named as the volt.

Volta modified another instrument called the eudiometer, which measured the volume and composition of gases. He was successful in finding out that ordinary air contains about 21% of oxygen. The modified version of the instrument also helped Lavoisier on his legendary work regarding the composition of water. Volta found out that the inflammable gas which creates bubbles in marshes was methane, which is now used as a fuel.

Volta initially rejected the Galvani’s idea of animal electricity. When he carried out the experiment himself, he was amazed that the same effect, momentary electric current, which was discovered by Galvani, can be achieved using metals and not dead frogs. Volta made it clear that electric currents could be generated by appropriately connecting metals or wires. Using zinc and copper wires and saline solutions, Volta successfully construced the first electric battery, widely considered to be one of the greatest and most important breakthroughs in the history of science and mankind.

Later Life and Death

In honor of his work, Volta was made a count by Napoleon Bonaparte in 1801. Furthermore, his image was depicted upon the Italian 10,000 lira note (no longer in circulation, since the lira has been replaced by the euro) along with a sketch of his well-known voltaic pile.

Volta retired in 1819 to his estate in Camnago,a frazione of Como, Italy, now named "Camnago Volta" in his honor. He died there on March 5, 1827.Volta's remains were also buried in Camnago Volta.

Volta's legacy is celebrated by the Tempio Voltiano memorial located in the public gardens by the lake. There is also a museum which has been built in his honor, and it exhibits some of the original equipment that Volta used to conduct experiments. Not far away stands the Villa Olmo, which houses the Voltian Foundation, an organization promoting scientific activities. Volta carried out his experimental studies and produced his first inventions near Como. Modern day honors go to him for being the father of the electric automobile. Toyota furnished the electric hybrid engine to Italian design house Giugiaro to build the Toyota Volta in 2003. Later on Chevrolet, in 2011, was only able to use the name.