Giuseppe Domenico Botto
Encyclopedia
Giuseppe Domenico Botto was an Italian physicist
Physicist
A physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...

.

Born at Moneglia
Moneglia
Moneglia is a comune in the Province of Genoa in the Italian region Liguria, located about 50 km southeast of Genoa. It is a tourist resort on the Riviera di Levante.-Main sights:...

, He studied at the University of Genoa
University of Genoa
The University of Genoa is one of the largest universities in Italy.Located in Liguria on the Italian Riviera, the university was founded in 1471. It currently has about 40,000 students, 1,800 teaching and research staff and about 1,580 administrative staff.- Campus :The University of Genoa is...

 and the École Polytechnique
École Polytechnique
The École Polytechnique is a state-run institution of higher education and research in Palaiseau, Essonne, France, near Paris. Polytechnique is renowned for its four year undergraduate/graduate Master's program...

 in Paris. The chair of General and Experimental Physics was assigned to G.D Botto in 1828. Experimental work was dedicated to magnetic, thermal
Thermal
A thermal column is a column of rising air in the lower altitudes of the Earth's atmosphere. Thermals are created by the uneven heating of the Earth's surface from solar radiation, and are an example of convection. The sun warms the ground, which in turn warms the air directly above it...

 and chemical effects of electrical currents and induction
Electromagnetic induction
Electromagnetic induction is the production of an electric current across a conductor moving through a magnetic field. It underlies the operation of generators, transformers, induction motors, electric motors, synchronous motors, and solenoids....

 of currents.

In 1830 Botto described in a note a prototype electric motor
Electric motor
An electric motor converts electrical energy into mechanical energy.Most electric motors operate through the interaction of magnetic fields and current-carrying conductors to generate force...

 on which he was working and published a description of it in a Memoria titled "Machine Loco-motive mise en mouvement par l'électro-magnétisme" to the Academy of Turin around 1836.

A device built on the basis of his description was part of the collection of scientific instruments of the Grand Duke of Tuscany, which is now kept at the Institute and Museum of History of Science in Florence
Florence
Florence is the capital city of the Italian region of Tuscany and of the province of Florence. It is the most populous city in Tuscany, with approximately 370,000 inhabitants, expanding to over 1.5 million in the metropolitan area....

. In the following years he published more work on improving efficiency of electric motors.

Botto experimented with electrolysis of water
Electrolysis of water
Electrolysis of water is the decomposition of water into oxygen and hydrogen gas due to an electric current being passed through the water.-Principle:...

 using a manual generator of electric sparks, the electric magnet designed by Leopoldo Nobili
Leopoldo Nobili
Leopoldo Nobili, born in 1784 in Trassilico and died 5 August 1835 in Florence, was an Italian physicist who invented a number of instruments critical to investigating thermodynamics and electrochemistry....

 and Vincenzo Antinori
Vincenzo Antinori
Vincenzo Antinori was a science administrator in Italy.From 1829 to 1859, Antinori was director of the Regal Museum of Physics and Natural History in Florence where he worked with Leopoldo Nobili on electromagnetic induction...

 on the basis of the discovery of' electromagnetic induction, made by Michael Faraday
Michael Faraday
Michael Faraday, FRS was an English chemist and physicist who contributed to the fields of electromagnetism and electrochemistry....

 in 1831. In 1833 he tested an iron-platinum thermocouple
Thermocouple
A thermocouple is a device consisting of two different conductors that produce a voltage proportional to a temperature difference between either end of the pair of conductors. Thermocouples are a widely used type of temperature sensor for measurement and control and can also be used to convert a...

 wrapped as a chain around a wooden stick which generated a current when heat from a flame was applied,. The heat from the flame created a temperature difference and the thermocouple converted the temperature difference into an electric voltage.

He also worked on other subjects and published in 1846 a note for the improvement of agriculture in Piedmont. In 1849 he proposed a new system for transmission and encoding for the electrical telegraph system (notes on this subject were recently discovered in the archives of the Museo Sanguineti Leonardini of Chiavari
Chiavari
Chiavari is a town and comune on the Italian Riviera in the Province of Genoa, region of Liguria. It is situated near the mouth of the Entella River, in the center of a fertile plain surrounded by mountains except on the southwest, where it comes down to the Mediterranean Sea...

.

He died at Turin in 1865.

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