this post was submitted on 26 Jul 2024
219 points (90.1% liked)
Technology
59589 readers
2891 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
https://en.m.wikipedia.org/wiki/Rectenna
What they've done here is use the very old existing rectenna technology and new types of nanoscale rectenna arrays to capture very low energy radio waves without an external antenna. We're taking -20 dBm or 10 μW.
In the end, I welcome any rectenna advances because if we ever build an efficient optical rectenna it'll blow photovoltaics out of the water by efficiency. Optical rectennas are like fusion power in just how revolutionary they would be to our energy economy.
Dang that's actually a super interesting concept. Thanks for the wikipedia link!
Agreed, this is the future Nikola Tesla wanted, and it's not some wild eyed crack pottery but what he was actually working on in Colorado.
https://en.m.wikipedia.org/wiki/Tesla_Experimental_Station