pdqcp
@pdqcp@lemmy.dbzer0.com
- Comment on TikTok uninstalls are up 150% following U.S. joint venture 1 week ago:
I can’t see content from piracy@dbzero or whatever now
Does that include comments?
- Comment on Christmas, do I need to say more? 1 week ago:
What was in that Mordor terrain?
- Comment on Perfect Aircrete, Kitchen Ingredients. 1 week ago:
TIL you could also use aluminum powder:
Foamed concrete differentiates from (a) gas or aerated concrete, where the bubbles are chemically formed through the reaction of aluminum powder with calcium hydro oxide and other alkalies released by cement hydration and (b) air entrained concrete, which has a much lower volume of entrained air is used in concrete for durability.
For those that would like to test that recipe as well, I found it here from that video:
Lightweight aerated concrete dry mix design Basic recipe for non autoclaved lightweight aerated concrete (aircrete) with 600 kg/m3 density: To make non autoclaved lightweight aerated concrete you need: - Ordinary Portland Cement - Limestone powder (particles up to 0.05 mm) - Aluminum powder with water coverage 15 000 cm²/g and more. Dry mix formula: 50% cement (by weight) + 50% limestone powder (by weight). I mean for 1 kg of dry mix you need 500 g cement and 500 g limestone powder Mixture formula for 600 kg/m³ density: 1 kg of dry mix 0.65 liters of water 1 g of aluminum powder for 100 kg of dry mix you will need 65 liters of water and 100 g of aluminum powder How to mix it: 1. Add water in the bucket 2. Add dry mix in the water and mix it for a couple of minutes 3. Add aluminum powder and mix it 1 - 2 minutes. 4. Pour it in the mold
Did anyone try to use aircrete as plaster instead? I wonder if it might be viable too
- Comment on Do babies learn languages at different rates depending on how hard the language is? 2 weeks ago:
I’m no specialist, but I’d say it is all about exposure.
How often and meaningfully they interact with people speaking different languages makes it easier for them to absorb that information. Is grandma the only person that speaks spanish with them when they visit once a year, while everyone else only speak in english? Yeah, it is going to be harder for them to learn spanish
- Comment on Aeroponic houseplants 2 weeks ago:
How could you??!? How could you mention fluffy bunnies and not show us them chomping down their snacks?
Btw, how many bunny themed items do you have around the house?
- Comment on Weekly Recommendations Thread: What are you playing this week? 2 weeks ago:
Are you syncing the files between the Xbox <> Steam deck?
- Comment on How would I replace this possibly load bearing wall? 2 weeks ago:
How did it go? What did you end up doing? Pics or you never fixed it :P
- Comment on Many Years Ago, I Told A Nuclear Power Loving (Eventually Employee) Friend that I Heard that China had Solar Panels that Charged Even Off The Moon Light… 2 weeks ago:
It is not exactly solar nor moon light, but there has been some experimentation with radiative cooling, which allows solar panels, with attached thermoelectric generators, to convert the night sky into a power source, but it is in the milliWatt range for now
See this paper for reference: “Nighttime electric power generation at a density of 350 mW/m2 via radiative cooling”
www.cell.com/…/S2666-3864(24)00676-3
Summary:
The coldness of the universe is a thermodynamic resource that can be harvested for renewable energy generation. Theoretically, on the Earth’s surface, the maximum power density that can be harvested from the earth’s thermal radiation is around 6,000 mW/m2. However, most experiments conducted so far have demonstrated a much lower power density in the tens of mW/m2. Here, we maximize the power density of such an energy-harvesting system by selecting efficient components with optimal sizing, minimizing heat leakage, and optimizing the thermal radiation spectrum. Our prototype achieves a sustained high power density of 350 mW/m2 at night, and we also demonstrate a power density at the 1,000 mW/m2 level using an above-ambient-temperature heat source. Our work here shows that the coldness of the universe can be harvested to generate renewable energy at the power density level that approaches the established theoretical bound. - Comment on Let's end Anti-Circumvention. We should own the things we buy! 3 weeks ago:
The suspense is killing me
- Comment on NVIDIA Puts 100-Hour Monthly Limit on All GeForce NOW Subscriptions 1 month ago:
DRAM manufacturers are not exactly known as the bastion of ethical behaviour though, seen they have been caught numerous times involved in the price fixing conspiracies
- Comment on 2 months ago:
More people should try barefoot hiking. I love it, but most people I know, they don’t even try it
- Comment on Is it completely impossible to do age verification without compromising privacy? 2 months ago:
Yes, it is, see quark ID as an example of decentralized open source project by the city of Buenos Aires, in Argentina, which leverages zero knowledge proofs:
- Comment on Did it really used to be common for guys to go to a bar every night like in Cheers or The Simpsons? 3 months ago:
Yup, it used to be a lot more common, Not Just Bikes has a great video on this subject too and how our car dependency made most of them disappear:
The Great Places Erased by Suburbia (the Third Place)
www.youtube.com/watch?v=VvdQ381K5xg
non YT yewtu.be/watch?v=VvdQ381K5xg - Comment on Clair Obscur: Expedition 33 Tops 4.4 million sales - IGN 4 months ago:
!patientgamers@sh.itjust.works gang?
- Comment on YSK that you can save a lot of money in Colorado by using Bustang. It's a government-run bus service that offers great and frequent buses across the state 5 months ago:
That’s good, does anyone know if any other states have similar services?
- Comment on China's green energy boom could spell the end of the fossil fuel age 5 months ago:
What’s the source of these graphs? I’ve seen them used before for a different country and they look really cool. I could probably waste a few hours just browsing different countries
- Comment on China's green energy boom could spell the end of the fossil fuel age 5 months ago:
They are already shutting it down on their own due to recent heatwaves raising the temps of the water used to cool down their reactors
- Submitted 5 months ago to technology@lemmy.world | 48 comments
- Comment on *Now you're playing with power!* 6 months ago:
How heavy is that?
- Comment on Steam Deck / Gaming News #22 7 months ago:
Just chill in the cabin with some chicken soup as much as needed, and comeback to your happily rambles whenever you feel like it. Have you finished God of War by now?
- Comment on The 'Stop Killing Games' initiative is close to its final deadline, and after that, its leader is understandably done: 'Either the frog hops out of the pot, or it's dead' 7 months ago:
zkproofs for the win!
Buenos Aires in Argentina already rolled out a decentralized digital id via zkSync on the Ethereum blockchain for their citizens, you basically have a zero knowledge proof that verifies who you are without revealing sensitive information. No more doxxing required
For those interested on how zkproofs work, it’s all mathmagic:
Computer Scientist Explains One Concept in 5 Levels of Difficulty
yewtu.be/watch?v=fOGdb1CTu5c
youtu.be/fOGdb1CTu5c - Comment on Tesla's European car sales nosedive for fifth month as customers switch to Chinese EVs 7 months ago:
Of course, public transport has a limit and we can root for both as well, including protected bike lanes even in the boonies like we successfully see in the Netherlands
- Comment on Tesla's European car sales nosedive for fifth month as customers switch to Chinese EVs 7 months ago:
Root for better public transport and active cities instead of car dependency :)
- Comment on Cat door in window 7 months ago:
Would you mind sharing which issues you had with chicken wire? Was it not sturdy enough?
- Comment on U.S. residential solar on the brink of collapse 7 months ago:
Have you looked into partially converting your home to off grid solar instead? Basically you have your home running solar during the day and any excess/night time energy required you can get from the power company as usual
- Comment on Why do some people hate drinking water? 7 months ago:
Whenever I hear that in my family, it always comes from smokers, which basically means their taste buds and olfactory senses have been compromised
- Comment on Study: Remote working benefits fathers while childless men miss sense of community 7 months ago:
They miss the sense of community because we no longer have 3rd places to hang out. For those unaware:
The Great Places Erased by Suburbia (the Third Place)
yewtu.be/watch?v=VvdQ381K5xg
youtu.be/VvdQ381K5xg - Comment on Global solar generation is now equivalent to the entire electricity demand of India, avoiding significant emissions 7 months ago:
Can’t you go off-grid?
- Comment on We have to solve the money problem! 7 months ago:
Sorry, I mistakenly read your original comment, transaction fees for USDC are actually free (gasless) via Base on Ethereum, eg: xcancel.com/coinbasewallet/…/1800653787960406031
Above costs are for other assets
- Comment on We have to solve the money problem! 7 months ago:
It has been around USD 0.001~0.008, but they are scaling aggressively so fluctuations aren’t as significant in the future regardless of usage. Details here: www.growthepie.com/fees