this post was submitted on 24 Feb 2025
1527 points (98.5% liked)
Technology
63236 readers
3304 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 other!
- 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
- Accounts 7 days and younger will have their posts automatically removed.
Approved Bots
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I mean, wireless electricity tech does exist, it just sucks and is horribly inefficient at any reasonable distance.
Well there's two possible implementations of wireless power transfer.
There's the way we use to charge our phones, Which is just an electromagnetic effect with no real way to extend its range. That technology has progressed as far as it's ever going to get.
The other way is through power beaming using infrared lasers and special crystals. That technology does have potential but is nowhere close to being consumer ready yet. One day a router may include both features but not today and certainly not in 2016 when this happened.
People have been able to extend the electromagnetic effect to a few feet, but yeah, there's a reason why most just use the close range version we have today.
Here's a demo from 2009: https://youtu.be/MgBYQh4zC2Y
Microwave transmission has also been explored in addition to lasers, as you say, but either way both methods involve power loss in energy conversion, and they both are very directional, making it impractical for consumer use.
But anyway, just wanted to say that the tech technically exists since it's funny when normal people bring it up without knowing the limitations of current technology and physics.