rtl-sdr uses the same chip as dvb-t tuners, but the everything else part is completely different
- 0 Posts
- 382 Comments
fullsquare@awful.systemsto
Showerthoughts@lemmy.world•Do you think politicians purposefully make the world worse so that their lawyer friends have more cases to make money from?
5·23 天前lol as if they could plan this far forward
fullsquare@awful.systemsto
No Stupid Questions@lemmy.world•If someone's injected with cancer cells, they develop cancer. Could at least part of the increase in cancer be to do with people getting other people's cancer cells inside their bodies?
2·23 天前cancer is in large part an old people disease, if you avoided dying of cholera you’re more likely to die of something else. also now there’s a lot of people who were exposed to carcinogens decades back, and we got better at treating pr preventing some other common causes of death like stroke or heart disease
fullsquare@awful.systemsto
Technology@beehaw.org•A Finnish town is heating itself with 2,000 tonnes of crushed rock: its giant “sand battery” can cover almost a month of heating demand and has cut district heating emissions by 70%
4·26 天前that’s no problem at all, systems like that are in use
fullsquare@awful.systemsto
Technology@beehaw.org•A Finnish town is heating itself with 2,000 tonnes of crushed rock: its giant “sand battery” can cover almost a month of heating demand and has cut district heating emissions by 70%
6·26 天前It’s easier to freeze water than to cool rock borehole
fullsquare@awful.systemsto
World News@lemmy.world•Saudi wealth fund scales back ‘fantastical’ plans for NeomEnglish
2·27 天前Saudis parked fuckload of money in ai startups
fullsquare@awful.systemsto
Technology@lemmy.world•More Renewables Lead To Lower Demand For Methane In EuropeEnglish
1·27 天前This will continue as long as there are CCGTs used as baseload, then it will drop as CCGTs (and biomass + waste burners) will cover the gaps
fullsquare@awful.systemsto
Technology@lemmy.world•More Renewables Lead To Lower Demand For Methane In EuropeEnglish
2·27 天前methane cracker? that’s a very unusual unit that outputs hydrogen and carbon. i could find info about opening of ethane cracker in 2025, but that’s for plastics, next to shutdown of another similar unit
fullsquare@awful.systemsto
Selfhosted@lemmy.world•A solar powered website that goes offline when there's no powerEnglish
2·27 天前Lithium-iron is about 2x more expensive, there might be different availability and energy use during manufacture is probably higher
fullsquare@awful.systemsto
Selfhosted@lemmy.world•A solar powered website that goes offline when there's no powerEnglish
11·27 天前Lead-acid batteries work if you don’t care about weight and lithium-iron phosphate if you do
fullsquare@awful.systemsto
Ask Lemmy@lemmy.world•How can you detect cancer spreading Nitrates in the water supply?
7·29 天前yeah this is only practical option, the analysis isn’t that expensive, but equipment to run it is. but also people who have their own water wells have to submit their own samples
fullsquare@awful.systemsto
News@lemmy.world•Trump orders Pentagon to redesign US aircraft carrier to use steam catapults to launch jets
1·1 个月前No they don’t, there’s still 4 units one per launcher. Most of problems you mention seems to come from energy storage system. Energy is stored in the flywheels, which requires annoying converter, so chinese variant uses giant set of supercapacitors instead which is just a bit heavier and has less problems with communications interference. Also can be split in many parts and fit in any space you have. Mostly benefit of being designed later. Zero surprises if americans figure it’s better but institutional inertia keeps them using the old one
fullsquare@awful.systemsto
News@lemmy.world•Trump orders Pentagon to redesign US aircraft carrier to use steam catapults to launch jets
2·1 个月前They don’t actually. Steam catapult is operated with completely separate steam supply, and major design goal of ford class was to remove it so even if pedo in chief wanted, retrofit is physically impossible. That separate steam supply needs extra freshwater because it’s not condensed and recovered. EMALS is much milder on plane and pilot because it’s a big linear motor that gives constant acceleration instead of spike then decreasing like with steam. Efficiency of steam catapult is also dogshit compared to turbine + energy storage system
fullsquare@awful.systemsto
News@lemmy.world•Trump orders Pentagon to redesign US aircraft carrier to use steam catapults to launch jets
5·1 个月前EMALS has been around for over 15 years so naturally trump lost interest
fullsquare@awful.systemsto
Ask Lemmy@lemmy.world•is it a good idea to put foamboard covered with aluminum foil on top of windows in my attic?
4·1 个月前Reflective side out, and on the outside this should work. Aluminum foil or a thermal blanket would also work and are lighter
set of hex keys and potion that gives you caffeine overdose. 10% chance of notebook with cursed knowledge
fullsquare@awful.systemsto
Mildly Infuriating@lemmy.world•The way Walmart delivered my son’s new backpackEnglish
11·1 个月前i’d still try hydrocarbon solvent first, because it’s least likely to damage it
fullsquare@awful.systemsto
Technology@lemmy.world•This A.I. Just Created Viruses Not Found in NatureEnglish
3·1 个月前You can’t critihype it when you call it phage madlibs from the beginning
fullsquare@awful.systemsto
Mildly Infuriating@lemmy.world•The way Walmart delivered my son’s new backpackEnglish
11·1 个月前almost certainly both will damage print. something like lighter fluid (or hexane) won’t, but it should loosen glue. trying to dislodge sticker with a razor sometimes works even better
some people suggest vegetable oil, but then you’re left with oily fabric

!wizards@lemmy.world