bphgravity
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Nikola Tesla: (1856-1943) In his second year at Polytechnical Institute, Nikola, an immigrant from Yugoslavia, asked his professor whether the excessive sparking at the brushes of a dc motor could be eliminated. His professor ridiculed his idea and embarrassed him in front of his fellow students. Later while working at the Edison Machine Works in New Jersey, he tried to interest his employer in his new induction motor and his ideas on AC. Thomas Edison would hear none of it. Three years later, Tesla established his own laboratory in New York and developed his motor system. This was the first synchronous motor. Tesla went on to develop the complete polyphase system. The split-phase motor and a standard 60 cycle frequency also belong to him. Tesla died without realizing his dream, but his genius led the way into a new world of generating, transmitting, and using electric power.
Andre Marie Ampere was conducting experiments in France at the same time Ohm was working in Germany. Ampere, who lived in Germany from 1775 to 1836, more or less developed the science of electromagnetism, and today his name lives on in the lower-case-a ampere, a unit of electrical current that is sometimes known as amp. Ampere led an unhappy life. When Andre was 18, his father was guillotined in the Reign of Terror, a tragedy that threw the youth into shock; he didnt read or speak for the next year and spent most of his days lying down and looking at the sky.
George Simon Ohm came from a long line of locksmiths in Germany, but he decided to become a scientist instead. He became a professor of mathematics and of physics, and in 1827 he published what is now known as Ohm's Law, a basic law of electricity. Ohm, who was born in 1787 and died in 1854, wasnt particularly well-regarded in his day, but eventuall others agreed that his theories were right, and today his name lives on in two words. The ohm is a unit of electrical resistance; the mho, which is pronounced moe and is ohm spelled backwards, is a unit of conductance that is reciprocal to ohm.
While Ohm worked in Germany and Ampere in France, Alessandro Giuseppe Anastasio Volta was expein Italy. Volta, who was raised as one of nine children in a very poor but noble family, became one of the greatest scientists of his time and a personal favorite of Napoleon, who eventually made him Count Volta. Volta died in 1827, at age 82, but his name lives on today in the word volt, a unit of electric potential and electromotive force.
In Scotland, James Watt was messing around with steam, and in the 1790's he developed the first true steam engine. He spent most of his life perfecting it - though he paused now and then to invent other things, including a clothes dryer - and in his honor the International Electrical Conference gave the name watt to a unit of electrical power. Watt died in 1819 at age 83.
Taken from the book "Above the Ceiling" by Tom Henry.
Andre Marie Ampere was conducting experiments in France at the same time Ohm was working in Germany. Ampere, who lived in Germany from 1775 to 1836, more or less developed the science of electromagnetism, and today his name lives on in the lower-case-a ampere, a unit of electrical current that is sometimes known as amp. Ampere led an unhappy life. When Andre was 18, his father was guillotined in the Reign of Terror, a tragedy that threw the youth into shock; he didnt read or speak for the next year and spent most of his days lying down and looking at the sky.
George Simon Ohm came from a long line of locksmiths in Germany, but he decided to become a scientist instead. He became a professor of mathematics and of physics, and in 1827 he published what is now known as Ohm's Law, a basic law of electricity. Ohm, who was born in 1787 and died in 1854, wasnt particularly well-regarded in his day, but eventuall others agreed that his theories were right, and today his name lives on in two words. The ohm is a unit of electrical resistance; the mho, which is pronounced moe and is ohm spelled backwards, is a unit of conductance that is reciprocal to ohm.
While Ohm worked in Germany and Ampere in France, Alessandro Giuseppe Anastasio Volta was expein Italy. Volta, who was raised as one of nine children in a very poor but noble family, became one of the greatest scientists of his time and a personal favorite of Napoleon, who eventually made him Count Volta. Volta died in 1827, at age 82, but his name lives on today in the word volt, a unit of electric potential and electromotive force.
In Scotland, James Watt was messing around with steam, and in the 1790's he developed the first true steam engine. He spent most of his life perfecting it - though he paused now and then to invent other things, including a clothes dryer - and in his honor the International Electrical Conference gave the name watt to a unit of electrical power. Watt died in 1819 at age 83.
Taken from the book "Above the Ceiling" by Tom Henry.
