Skip Navigation

Ernest
Ernest @ ernest314 @lemmy.zip
Posts
0
Comments
21
Joined
1 mo. ago

Scientists make game-changing breakthrough that could slash costs of solar panels: 'Has the potential to contribute to the energy transition'

Jump

  • Or why not just use (big) mirrors?

    I mean, this is a thing with solar concentrators already, haha

    and for those the heat is a feature :p

    • Scientists make game-changing breakthrough that could slash costs of solar panels: 'Has the potential to contribute to the energy transition'

    Jump

  • You can shape them that no matter how the light falls on it, it will align to the center. Kind of like how satellite dishes work but in reverse.

    how do you do this, actually? I'm curious about the details because I just watched a video on compound parabolic reflectors, haha

    a regular (ideal) convex lens with a single focal point will have the image move around as the light source moves across the sky. AFAIK satellite dishes tend to be paraboloids, which focus parallel rays onto the focal point, and if you change the angle of the light source, you'll start losing focus. Stuff like the DSN and radio telescopes absolutely do have to aim and track their targets (or are forced to follow the rotation of the earth).

    satellite dishes that are aimed towards geostationary satellites don't have to move (because their targets are stationary in the sky), while stuff like starlink tracks targets with a phased array.

    • Scientists make game-changing breakthrough that could slash costs of solar panels: 'Has the potential to contribute to the energy transition'

    Jump

  • well, adding lenses kinda requires motorizing the panels to track the sun, right? otherwise the "hot spot" is going to move around across the day/year

    is there a way to shape the lens to mitigate this?

    • The horrors

    Jump

  • action is the antidote to fear.

    • The horrors

    Jump

  • just wanted to add another answer to the wonderful ones you've gotten already.

    During the darkest days of the AIDS crisis, we buried our friends in the morning, we protested in the afternoon, and we danced all night, and it was the dance that kept us in the fight because it was the dance we were fighting for.

    I don't really have a good answer on how to find joy despite the bleak violence of reality, but I know that we must still try to find it, because hope and joy is exactly that which they are trying to snuff out.

    • When you are so focused on the moment you block out everything else

    Jump

  • Square cube law? What's that?

    maybe his body is mostly air sacs

    • Kilmar Abrego Garcia says he was beaten and subjected to psychological torture in El Salvador jail

    Jump

  • reading their scathing dissents is one of the things that helps me stay sane; god bless the work they do--I don't know how I'd put up with going to work having to deal with blatant gaslighting for the rest of my life

    • StopKillingGames - Yet another reminder for European citizens to fight for software ownership before the timer runs out. A signature takes mere minutes and preserves many games and lots of fun.

    Jump

  • and like, one of the options would be for live service games to say "we are planning to operate for {number} of years" and people would know to spend their money accordingly

    it would be transparent and informative and people would be empowered to make their own decisions

    • Proton joins suit against Apple for predatory practices that harm developers and consumers

    Jump

  • My read on this is that he's an idiot who wanted to air a contrarian opinion ('cause that's how tech CEOs be), and focused in on a very literal/pedantic view of the issue without taking into account the context (which is that the Trump regime is facist and also just... lies, like, all the time).

    Whether or not being a pedantic idiot is better or worse than being a Trumpist (or if it's even a meaningful difference) is up to you, of course.

    • No JS, No CSS, No HTML: online "clubs" celebrate plainer websites

    Jump

  • it's a shame commonmark stalled and then markdown variants proliferated again because of that :/

    • Most House Democrats vote to kill Al Green's impeachment measure

    Jump

    • Most House Democrats vote to kill Al Green's impeachment measure

    Jump

    • Most House Democrats vote to kill Al Green's impeachment measure

    Jump

  • no, the vote was whether to ignore the impeachment, so "no" is the correct vote here

    • JavaScript broke the web (and called it progress)

    Jump

  • I think they intend to use one for voiced "th" and another for unvoiced, but they mess up a few times

    • ‘HIV-ending’ drug could be made for just $25 per patient a year, say researchers

    Jump

    • ‘HIV-ending’ drug could be made for just $25 per patient a year, say researchers

    Jump

  • It looks like that's indeed the case, and they've been around long enough that Handmaid's probably wasn't that well-known at the time. Still, the irony is off the charts... have they considered changing their logo to the traditional four-armed rotationally-symmetric sacred Buddhist symbol? >.>

    • ‘HIV-ending’ drug could be made for just $25 per patient a year, say researchers

    Jump

  • naming your company fucking "Gilead" is some torment nexus-ass shit

    • Massive internet outage reported: Google services, Cloudflare, Character.AI among dozens of services impacted

    Jump

  • great article, and I had no idea that happened to Brian Krebs, of all people! o.O

    I do think the EFF makes a good point though, and I think personally I tend to be biased towards content neutrality over moderation (at least, more strongly the larger the platform is, and Cloudflare is very large). Not to the point of Xitter, obviously, but I think there's at least a reasonable argument for Cloudflare in this case.

    that said, after some searching, I did find the following two articles, and I find their arguments against Cloudflare very compelling:

    Fortunately I'm already using end-to-end SSL certs via Caddy, but now I'm considering just moving off Cloudflare entirely and instead providing regular backups to Internet Archive--most of the stuff I host is entirely static and very lightweight.

    • Massive internet outage reported: Google services, Cloudflare, Character.AI among dozens of services impacted

    Jump

  • tell me more

    • News outlets in crisis mode as Google-led AI search push crushes website traffic

    Jump