Galvani luigi biography of christopher columbus
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The Discovery of Electricity
Discovery of Electricity
The electric charge
Luigi Galvani and Alessandro Volta
Magnetism
Hans Christian Oerstedt
Andre Marie Ampere
Michael Faraday und die Elektrodynamik
Without electricity, we would probably still communicate today by physically transporting information back and forth on foot, horseback or boat. Even if we took the train or an airplane, it would still be a physical transport of messages. Attempts were made in the late 18th and early 19th centuries to send messages over long distances by transmitting optical signals from a series of towers. This type of message transmission was expensive, cumbersome and a so called „fair-weather technology“, that only functioned during the day time with good visibility.
The electricity became a game changer.
Today it is difficult to imagine a world without electricity. Our entire life is now determined, if not entirely dependent, on electricity. It is hard to believe that at the beginni
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It was difficult for early people to distinguish between electricity and magnetism. People experienced magnetism and static electricity since civilization began. Both phenomena "attract" other substances. Cloth when rubbed on certain substances could attract small items like a feather. Lodestone could attract small pieces of metal.
Today, without electricity, our society would be a very different one. Humans have learned to control the electron to create wild and wonderful displays. Students can hardly imagine life without electricity. There would be no elevators, toasters, or video games. Computers, light bulbs, television, and radio would only be in the minds of dreamers. We are a world dependant on the electrons.
Rumor has it that Hoang-Ti, the founder of the Chinese empire around 2635 BC, used a magnetic compass to guide his chariot to guide him in fog.
It is well documents that in 600 B.C., Thales of M
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Abstract
We relate the fundamental stages of the long road leading to the upptäckt of electricity and its uses in cardiology. The first observations on the electromagnetic phenomena were registered in ancient texts; many Greek and Roman writers referred to them, although they provided no explanations. The first extant treatise dates back to the XIII century and was written bygd Pierre dem Maricourt during the siege of Lucera, Italy, bygd the army of Charles of Anjou, French king of Naples. There were no significant advances in the field of magnetism between the appearance of this treatise and the publication of the study De magnete magneticisque corporibusXIX century, the disciples of the physiologist Galvani were able to demonstrate the existence of animal electricity through experiments exploring the so-called current of injury. On the path of Volta's approach, many characteristics of electricity were detailed, which ultimately l