I think I once read that when the metric system was first defined during the French Revolution, they also tried to use a decimal system for time, but that was quickly abandoned.
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japps13@lemmy.physfluids.frto
World News@beehaw.org•How Accidental Geoengineering May Be Affecting Climate Change. [Re: rise in sea temperature]
9·3 years agoFascinating. I heard something similar with particle pollution in big cities.
japps13@lemmy.physfluids.frto
Science@beehaw.org•Superconductor breakthrough replicated twice on preliminary testing
19·3 years agoKeep in mind that superconductors have a critical current below which you have to be if you want to stay in the superconductive states. So for a superconductor to be useful for energy transport, this current has to not be tiny. I haven’t had the time to read their paper so I don’t know the value of the critical current. Also if for some reason the current suddenly goes beyond the critical current, the wire will heat suddenly, with possible damage…
japps13@lemmy.physfluids.frto
Science@beehaw.org•Superconductor breakthrough replicated twice on preliminary testing
6·3 years agoMy understanding is that they also need low thermal noise to ensure pure states. They cool much below the superconduction threshold temperature (eg typically 20 mK). So I am not sure that this would be useful for quantum computers at the moment. Magnetic field productions such as that in MRI requires high current, so that depends on the maximum current that this material can sustain before that breaks superconductivity. So it could perhaps turn out useful or totally useless. Hard to say at the moment.
japps13@lemmy.physfluids.frto
Asklemmy@lemmy.ml•What password manager do you recommend?English
4·3 years agoI like the Password for Nextcloud app. I self-host mine, but I think there might be Nextcloud instances that you can access. It is encrypted, and has an app for smartphones.
japps13@lemmy.physfluids.frto
No Stupid Questions@lemmy.world•Is it possible to subscribe to a post to recieve notification from any new comment or edit from the OP?English
2·3 years agoYes ! This would also be useful on Mastodon.
Do we know that this is the one and only domain that they will use when and if they actually enable federation ?
japps13@lemmy.physfluids.frto
No Stupid Questions@lemmy.world•How many people here have actually used XMPP?
1·3 years agoHow do you forward Whatsapp to matrix? Is it two-way?
japps13@lemmy.physfluids.frto
No Stupid Questions@lemmy.world•How many people here have actually used XMPP?
3·3 years agoVery interesting read. Thanks for sharing. I’m curious: have you considered [matrix] nowadays?
japps13@lemmy.physfluids.frto
World News@lemmy.world•Didier Raoult, who popularized hydroxychloroquine as a treatment for covid-19, is being investigated for unauthorized research on homeless people
10·3 years agoI am a scientist myself, and I know what the HCERES says about his institute, and also that his institute no longer had support of the CNRS, which is telling considering that the CNRS only very rarely make such moves, as well as editors no longer accepting his papers leading him to create his own self serving journals. My issues with him are his lack of scientific rigor and lack of scientific ethics. Unfortunately, he’s staining the community as a whole, even though he lost support of several scientific institutions long before the Covid.
japps13@lemmy.physfluids.frto
World News@lemmy.world•Didier Raoult, who popularized hydroxychloroquine as a treatment for covid-19, is being investigated for unauthorized research on homeless peopleEnglish
27·3 years agoThis guy is a shame for us all, French academics… sorry World, please know we’re not all frauds….
japps13@lemmy.physfluids.frto
No Stupid Questions@lemmy.world•*Permanently Deleted*English
3·3 years agoYou can use a third hand, typically like this: https://befr.rs-online.com/web/p/soldering-accessories/1466439
japps13@lemmy.physfluids.frto
No Stupid Questions@lemmy.world•*Permanently Deleted*English
3·3 years agoFrom my limited experience, make sure the things you want to solder are mechanically held together. And heat the pieces you want to solder, and use them to melt the tin. Never melt the tin directly on the iron.
japps13@lemmy.physfluids.frto
No Stupid Questions@lemmy.world•Should I use Matrix for Messaging?English
2·3 years agoThe not so tech savvy family members have trouble with e2e though. They always have problems with device somehow not properly authorized, and some encrypted rooms accessible from the computer but not from the phone. I usually solve it for them regularly, but they still can’t do it by themselves. So I prefer to keep the rooms unencrypted (we are not sharing state secrets anyway), but self-hosted (I don’t want to give away family pictures to big tech companies).
japps13@lemmy.physfluids.frto
No Stupid Questions@lemmy.world•Should I use Matrix for Messaging?English
1·3 years agoI’ve never bothered to try alternatives to Element. Are they worth trying ?
japps13@lemmy.physfluids.frto
No Stupid Questions@lemmy.world•Should I use Matrix for Messaging?English
8·3 years agoAnd naturally, matrix is federated so you can join rooms of any other instance.
japps13@lemmy.physfluids.frto
No Stupid Questions@lemmy.world•Should I use Matrix for Messaging?English
14·3 years agoI use Matrix (Element client on iOS) with the extended family and it works well. Most of them are not tech-savvy. I self-host my own Matrix instance because I wanted to have control on where personal pictures were hosted.
japps13@lemmy.physfluids.frto
No Stupid Questions@lemmy.world•Viewing Mastodon posts from LemmyEnglish
1·3 years agoOr another instance. Mastodon.social is quite overloaded.
There is also an iOS app. It is quite simple but it works well.
Extinguish that !