What are some examples of wireless electricity

Wireless energy transfer

If you want to charge your laptop, smartphone or electric car, you can use the charging cable. But there is another way. In this episode of the podcast, Nejila Parspour from the University of Stuttgart tells how energy can be transmitted wirelessly.

Copper cables conduct electricity from the power plants through the power grid to every socket. And power cables are also used for the further transport of electrical energy - to our electrical appliances. In principle, this type of energy supply works no differently than at the end of the 19th century, when the world's first power plants were built - for example at Niagara Falls in the USA. Even then, the inventor and pioneer of electrical engineering Nikola Tesla imagined how the energy generated there could be brought to the people.

Nejila Parspour

Nejila Parspour: “He knew the energy was going to run out. After all, everyone wanted energy, as the need has continued to grow in the course of electrification. Tesla thought that Europe would also need a lot of energy. His idea was therefore to transport the energy obtained at Niagara Falls in the form of electricity wirelessly via the ionosphere to Europe. "

Nikola Tesla was obsessed with the idea of ​​transmitting energy without cables. But his bold plans could not be put into practice. And with that, wireless energy transmission was off the table for a while. In the meantime, however, researchers have found other - and far less dangerous - ways to transmit electrical power wirelessly. More on this in the 265th episode of our podcast.