Background in hard sciences, computing (FOSS), electronics, music, Zen.
- 35 Posts
- 99 Comments
kalkulat@lemmy.worldOPto
Technology@lemmy.world•Americium: How a small element could power the next century of space explorationEnglish
2·9 hours agoThat it is!
kalkulat@lemmy.worldOPto
Technology@lemmy.world•Americium: How a small element could power the next century of space explorationEnglish
3·9 hours ago10 times as much as gold
To -make-, yep. As the article pointed out, there’s a lot of Amercium in waste dumps where old smoke detectors … and anyone can make it. Five times the half-life means it can power much longer missions.
kalkulat@lemmy.worldOPto
Technology@lemmy.world•Scientists Growing Colour Without ChemicalsEnglish
1·8 days agoGoing by ‘colour’, I’d guess that headline came from the UK. Writing them is a tricky, trippy task.
kalkulat@lemmy.worldOPto
Technology@lemmy.world•28-pound electric motor delivers 1000 horsepowerEnglish
1·11 days agoElectrics produce maximum torque at 0 rpm …
kalkulat@lemmy.worldOPto
Technology@lemmy.world•28-pound electric motor delivers 1000 horsepowerEnglish
21·14 days agoYep, I noticed that, you’re right. And that’s near-miraculous efficiency. The maker’s website sez: “YASA also estimates that its all-important continuous power will be in the region of 350kW-400kW (469bhp-536bhp).” It also sez: "To achieve a 750kW short-term peak rating and a density of 59kW/kg … " Devi’ls in the details … The image on the ‘superblondie’ page shows A LOT of cooling built into whatever metal that is: https://supercarblondie.com/wp-content/uploads/YASA-tiny-electric-motor.webp
kalkulat@lemmy.worldOPto
Technology@lemmy.world•28-pound electric motor delivers 1000 horsepowerEnglish
74·15 days agoI think he was trying to admit he doesn’t know shit about electric motors.
kalkulat@lemmy.worldto
Technology@lemmy.world•Mathematics disproves Matrix theory, says reality isn’t simulationEnglish
15·16 days agoOh those mathers. At least scientists are humble enough to recognize that theorums about the physical world can’t be proven.
kalkulat@lemmy.worldOPto
Technology@lemmy.world•China solves 'century-old problem' with new analog chip that is 1,000 times faster than high-end Nvidia GPUsEnglish
102·16 days agoOh noes, how could that -possibly- scale?
kalkulat@lemmy.worldOPto
Technology@lemmy.world•China solves 'century-old problem' with new analog chip that is 1,000 times faster than high-end Nvidia GPUsEnglish
81·16 days agoIt was a decent summary, I was replying when you pulled it. Analog has its strengths (the first computers were analog, but electronics was much cruder 70 years ago) and it is def. a better fit for neural nets. Bound to happen.
kalkulat@lemmy.worldOPto
Technology@lemmy.world•China solves 'century-old problem' with new analog chip that is 1,000 times faster than high-end Nvidia GPUsEnglish
51·17 days agoNice thorough commentary. The LiveScience article did a better job of describing it for people with no background in this stuff.
The original computers were analog. They were fast, but electronics was -so crude- at the time, it had to evolve a lot … and has in the last half-century.
kalkulat@lemmy.worldto
Technology@lemmy.world•Microsoft just changed where your Word documents live — here’s why it mattersEnglish
15·1 month ago" Word will now save new documents to OneDrive by default — and that changes everything"
Wouldn’t it be great if all your docs were stored out in the cloud? Just think, you wouldn’t need a hard drive! And someone else could guard them for you, like, say, Deputy Dan. http://descope.kwwhitaker.com/wallofscience.html
kalkulat@lemmy.worldto
Technology@lemmy.world•kurzgesagt – AI Slop Is Killing Our Channel / Destroying the InternetEnglish
644·1 month agoNope, and this one is NOT going to change that … can’t take all that cutesy animation and the fast-flowing babble for 2 minutes, let alone 12
kalkulat@lemmy.worldto
Technology@lemmy.world•kurzgesagt – AI Slop Is Killing Our Channel / Destroying the InternetEnglish
680·1 month agoThis video is very probably also AI slop
kalkulat@lemmy.worldOPto
Technology@lemmy.world•AI chatbots that butter you up make you worse at conflict, study findsEnglish
2·1 month agoIt really helps to try to think about the other side of any question. That’s what good debaters do, so they can figure out the best responses to what the others’ arguments might be.
When these LLMs keep agreeing with you, they’re actually weakening the likelihood that you’ll work out a fully-formed opinion.
kalkulat@lemmy.worldOPto
Technology@lemmy.world•AI chatbots that butter you up make you worse at conflict, study findsEnglish
2·1 month agoMe too … LEMMY added that, out of my control. So I replaced it with my idea of what a typical LLM looks like.
kalkulat@lemmy.worldOPto
Technology@lemmy.world•AI chatbots that butter you up make you worse at conflict, study findsEnglish
1·1 month agoYou -do- realize you’re getting advice from a machine that constructs sentences using mathematical algorithms, and has no clue at all what it’s saying … right?
kalkulat@lemmy.worldOPto
Technology@lemmy.world•Renewables blow past nuclear when it comes to cheap datacenter juiceEnglish
1·2 months agoThat’ll teach them to plan ahead!
kalkulat@lemmy.worldto
Technology@lemmy.world•Google's shocking developer decree struggles to justify the urgent threat to F-DroidEnglish
231·2 months agoYep. The E.U. has allowed itself to be dominated for too long by the US megacorps. It has the talent, ideas, and manufacturing to tell US firms to bugger off … and the sooner, the better for us all.
kalkulat@lemmy.worldOPto
Technology@lemmy.world•Renewables blow past nuclear when it comes to cheap datacenter juiceEnglish
21·2 months agoA funny thing happened back in the middle 1800s. A man ran a 7-ton electric locomotive a mile and a half. The motor was powered by a storage device. In the late 1800s, people drove their cars around all day using a storage device. These storage devices became better and better, until they could power trucks and buses for hundreds of miles.
They are still getting better and better. Of course they can be depleted, and it’s good to havea backup methods to cover these cases and to keep the storage devices charged when there’s no sun or wind. Hydroelectric dams powered by water-storage are widely-used, and some flat places still burn fossil fuels to do that as well.


















Good point on the lubricants, but given the potential profits, it’s already being worked on. https://www.nyelubricants.com/space