How close is wireless power technology?

Visit https://www.youtube.com/watch?v=CVwD4FFaZg0 to watch the full Space Greed episode! Or, use https://curiositystream.com/Sabine for a full year of Curiosity Stream for only $14.99.

You can support us on Patreon: https://www.patreon.com/Sabine

Why can't we send power wirelessly the same way that we send information, the way that you are most likely watching this video? Well, we can. The problem is, it's not such a great idea to have a lot of energy in the air around you. In this video I tell you what the issue is with wireless power transfer, how far along the technology is, and what the most recent scientific developments are.

The full video of the microwave-powered helicopter is here: https://www.youtube.com/watch?v=9angvpwHOy8

Tom Scott's video about microwaved hamsters is here: https://www.youtube.com/watch?v=2tdiKTSdE9Y

More info about Samsung's wifi-powered remote is here: https://www.makeuseof.com/samsung-tv-remote-power-over-wifi/

The paper about extracting energy from the 5G network is this: https://www.nature.com/articles/s41598-020-79500-x

The PRL about coherently enhanced wireless power transfer is here: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.143901

The other paper I mention from the Stanford group in 2020 is this https://www.nature.com/articles/s41928-020-0399-7

And finally, the paper about how metamaterials can enhance near-field wireless power transfer is this:
https://ieeexplore.ieee.org/document/8000613

Many thanks to Jordi Busqué for helping with this video http://jordibusque.com/

0:00 Intro
0:58 The problem with wireless power
2:18 Near-field wireless power transfer
4:21 Far-field wireless power transfer
12:34 Recent scientific developments
14:32 Sponsor message

Видео How close is wireless power technology? канала Sabine Hossenfelder