Wir stellen vor:
Ihr neuer Präsentationsassistent.
Verfeinern, verbessern und passen Sie Ihre Inhalte an, finden Sie relevante Bilder und bearbeiten Sie Bildmaterial schneller als je zuvor.
Suchtrends
British scientist Michael Faraday discovered electromagnetic induction: electric current can be induced by moving magnets inside cops of copper wire.
In 1954 Russia created the first functioning nuclear power plant. In these plants, electric power is generated through fission (splitting) of uranium atoms. This process produces heat, which is converted in electricity by a turbine.
Mankind has known about electricity for thousands of years, a long time before we knew how to use it. In fact, greek philospher Thales of Miletus discovered that rubbing amber and fur against each other created a small current, known today as static electricity.
Against Edison competed Nikola Tesla, another inventor. He worked on alternating current (AC), which could travel hundreds of miles and could be converted much easily.
In 1893, Tesla's AC electricity powered the Chicago World's Fair and the same year the Niagara Falls Power Company decided that the Niagara falls could be used to generate AC power.
The conflict between Edison and Tesla became known as the War of the Currents.
1923
1752
1879
1954
1831
600 B.C.
In 1923, scientists and inventors found a way to use the photoelectric effect to create electricity. They invented photoelectric cells, which transform sunlight into electricity. These panels are still widely used today as one of the main alternative energy sources.
In 1752 Benjamin Franklin conducted his famous kite experiment. He tied a key to the end of a kite's string and flew it during a storm. When lightning hit the kite, it traveled down the string to the key and gave him an
electric shock.
This experiment proved that
lightning is electrical in nature.
In 1879 famous inventor Thomas Edison released the first electric lightbulb. This invention was one of the first practical uses of electricity, even though, firstly, it could only be used by the rich and by corporations.
Also, Edison used direct current (DC), which couldn't travel for long distances and needed substations every 2 miles, making it harder for electricity to be widely used. It was also hard to convert direct current to higher or lower voltages.
Sources