Lasers Could Soon Power U.S. Military Bases—And Not Even Jamming Could Stop It (www.popularmechanics.com)
from L4s@lemmy.world to technology@lemmy.world on 07 Oct 2023 12:00
https://lemmy.world/post/6439072

Lasers Could Soon Power U.S. Military Bases—And Not Even Jamming Could Stop It::We spoke to the project manager for DARPA’s POWER program, who explains how the wireless energy transfer technology will work.

#technology

threaded - newest

redcalcium@lemmy.institute on 07 Oct 2023 13:09 next collapse

the end user converts that laser energy back into electricity using narrow-bandgap-tuned monochromatic photovoltaics

Is this specialized photovoltaic panels already exist or need to be invented first?

Cocodapuf@lemmy.world on 07 Oct 2023 13:30 collapse

Well, photovoltaic panels are already only good at converting a specific range of wavelengths of light into energy. If you want to build more efficient panels (for normal uses), you often need to layer them, with different layers able to use different ranges of the spectrum.

Lasers (and LEDs for that matter) only produce a single wavelength of light, so there is some potential for using it to transmit energy. You just need to tune your laser and your panel to be on the same wavelength. So there’s some tuning that needs to happen, but it’s basically traditional photovoltaics we’re talking about.

Although even then, I’m not sure what the theoretical maximum efficiency of these panels would be, there would probably still be a lot of energy loss. AND ALSO, I have some serious concerns with giving the military giant space based lasers strong enough to power a military base, that’s generally called a death ray.

Somehow, I’m actually more comfortable with the military having small nuclear reactors…

astropenguin5@lemmy.world on 07 Oct 2023 18:45 collapse

Somehow, I’m actually more comfortable with the military having small nuclear reactors

Good, cuz they’ve had them for years on submarines and maybe some boats too lol

Sylver@lemmy.world on 07 Oct 2023 13:16 next collapse

Any way to view the article without signing up and paying?

WestyFlyer@lemmy.world on 07 Oct 2023 14:04 collapse

I didn’t see a paywall when I clicked on the link, but you can try this:

12ft.io/proxy?q=https%3A%2F%2Fwww.popularmechanic…

gravitas_deficiency@sh.itjust.works on 07 Oct 2023 13:59 next collapse

and not even jamming could stop it, but clouds could

FTFY

Aurenkin@sh.itjust.works on 07 Oct 2023 14:10 next collapse

Weather control device detected

gravitas_deficiency@sh.itjust.works on 07 Oct 2023 14:15 collapse

WARNING: Chronosphere activated!
hazelnot@lemmy.blahaj.zone on 07 Oct 2023 16:35 collapse

Our base is under attack

Unit lost

Low power

Unit lost

LetMeEatCake@lemm.ee on 07 Oct 2023 18:53 collapse

Unit Ready
Unit Ready
Unit Ready

Construction complete

SkybreakerEngineer@lemmy.world on 08 Oct 2023 12:02 collapse

You must construct additional pylons

tony@lemmy.hoyle.me.uk on 07 Oct 2023 15:22 next collapse

Or anything reflective. Throw some strips of tinfoil at it (that’s just chaff WW2 style) and it not only disrupts power it has a good chance of blinding a few of the troops on the ground too.

assassinatedbyCIA@lemmy.world on 09 Oct 2023 04:35 collapse

Mirrors

Skanky@lemmy.world on 07 Oct 2023 14:37 next collapse

“could”

“Soon”

Meaning, this is never going to happen.

Sure, it’s possible to send power through the air - that much is already known. Sending significant levels of power over long distances is a whole other matter

Hobbes@startrek.website on 08 Oct 2023 06:56 collapse

Aka every article in popular mechanics

moipe@lemmy.world on 07 Oct 2023 15:42 next collapse

But what powers the lasers? Is it the jam? Does the jam power the lasers?

NaibofTabr@infosec.pub on 07 Oct 2023 17:15 next collapse

<img alt="" src="https://i.imgflip.com/5zwop.gif">

TheOgreChef@lemmy.world on 07 Oct 2023 17:23 next collapse

There’s only one man who would DARE give me the raspberry

PipedLinkBot@feddit.rocks on 07 Oct 2023 17:23 next collapse

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scorpionix@feddit.de on 07 Oct 2023 21:56 collapse

*pulls down visor*

Lonestar!

rob_t_firefly@lemmy.world on 09 Oct 2023 02:56 collapse

*zooming camera crashes into visor*

stown@lemmy.world on 09 Oct 2023 13:17 collapse

<img alt="" src="https://lemmy.world/pictrs/image/2b1d6225-4a9c-411c-a664-2a50ca6fddc5.jpeg">

scottywh@lemmy.world on 08 Oct 2023 07:12 collapse

Sharks… sharks power the lasers

rob_t_firefly@lemmy.world on 09 Oct 2023 02:58 collapse

This gadget was the plot macguffin of the G.I. Joe movie from 1987.