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