hannob

41 ms·

511.
by hannob 5y ago
Your problem seems to be that you don't understand the concept of probabilities. Something can work 80-90% of the time, but not 100%.
512.
by hannob 5y ago
This is really thinking it backwards. You don't build the storage before you have the renewables to store. And almost no country is at a point where they need storage in large amounts (as long as that's an option it's cheaper
513.
by hannob 5y ago
This is a person who was close to the community long before she became a politician. And she gave a similar talk 2 years ago: https://media.ccc.de/v/thms-50-als-netzaktivistin-im-bundest...
514.
by hannob 5y ago
They are: https://www.airbus.com/en/innovation/zero-emission/hydrogen/... The thing is - all carbon free options for aviation come with their downsides. Producing hydrogen creates a lot more conversion l
515.
by hannob 5y ago
> * I don't think the crash requirements need to compare to commercial aviation, but to cars. This is competing with cars. Noone will accept any new technology that is as dangerous as cars. (And I sincerely hope at some point we wil
516.
by hannob 5y ago
It kinda is in cities, but the challenge is having a country-wide network. I'm in Germany, which may obviously differ from the US, but here's what I see: In cities new app-based services that are much, much more convenient to use
517.
by hannob 5y ago
> For most city vehicles, a PHEV will electrify the majority of the miles with a fraction of the battery capacity. There have been studies on how PHEVs are used in the real world and this is just not what's happening, see e.g.: htt
518.
by hannob 5y ago
Greenpeace had claimed that they tried to offer Vattenfall to buy their coal mines in Eastern Germany to shut them down (they were later sold to czeck company EPH), but it's a bit unclear how serious that offer was: https://
519.
by hannob 5y ago
I'm running an email server and I can tell you that this is by and large not the case. If you put some decent effort into making sure that you don't send spam, try to monitor if anyone thinks you send spam and react when someone c
520.
by hannob 5y ago
The concerns about the nist curves and the dual ec issue are two completely separate things. Furthermore: > Also, the original RSA keys used in SSH have a sha-1 problem, and have been deprecated. This is wrong. What's correct is tha
521.
by hannob 5y ago
I'm not sure I agree with that. One thing to keep in mind is that SSH uses RSA only for signatures. That already kills off most attacks on RSA, as encryption has always been weaker than signatures. Not using a small exponent key kills
522.
by hannob 5y ago
I've seen people think like that who learned the hard way they were wrong. The crucial thing people tend to miss: Attacks scale. They can be automated. Your blog may not be worth the trouble hacking it, but hacking thousands of private
523.
by hannob 5y ago
The comment above was about heating in winter. Do you propose to build so many nuclear plants that you can provide peak electricity including heating in cold winter months? Do you have numbers for that? (I imagine that'd be the most ex
524.
by hannob 5y ago
Do you have such numbers for a nuclear-based solution? Or do you only ask for solutions for the hard problems for the technologies you don't like?
525.
by hannob 5y ago
His argument was: "$x kills people... and annoys me... We should ban it."
526.
by hannob 5y ago
This isn't an issue of social science. This is an issue that has been found in a diverse number of fields, basically everywhere where someone has looked: https://www.frontiersin.org/articles/10.3389/fnhum.2018
527.
by hannob 5y ago
The problem with creating a competitor for youtube is probably more challenging than most other web services. You don't have to deal with network effects and technology, you also have to deal with a host of thorny copyright issues. The
528.
by hannob 5y ago
This may sound like fun, but there's some evidence that the parachute analogy has been massively overused: https://pubmed.ncbi.nlm.nih.gov/29343497/ Like the idea here is that there are some interventions that are
529.
by hannob 5y ago
Is there? I mean I know there's "Year of Rail" and all that, but that doesn't seem to translate to anything more than words right now. (Like - no actual trains you could book.) The number of night trains has decreased ov
530.
by hannob 5y ago
It'd be extremely difficult to make a crossing of the bering strait work practically. It's not just the technical challenges of building a bridge or a tunnel in pretty harsh conditions. It's also that on the russian side ther
531.
by hannob 5y ago
It's actually the 8th: https://www.openssl.org/news/vulnerabilities.html But this really isn't that unusual for a library of that complexity and size. All of these vulns are pretty boring, none is likely to c
532.
by hannob 5y ago
The article itself is more balanced than the headline. In the second half it explains that hydrogen should be used in no-regret sectors where there's no good alternative and points to Michael Liebreich's hydrogen ladder, which ide
533.
by hannob 5y ago
They don't talk about using methane to create hydrogen, that's the standard how it's done today. But that's terrible, because it creates huge amounts of CO2. There is some debate whether to use methane reforming with CCS
534.
by hannob 5y ago
3rd party JS is pretty much unavoidable if your main source of income is ads. It's particularly true for almost all media pages. That's of course not the whole web, but it's a huge chunk. If you do anything that does not requ
535.
by hannob 5y ago
If you don't have extremely sophisticated filter equipment, every form of burning wood is a terrible source of air pollution. Calling that "sustainable" is... maybe a sign how meaningless the word sustainable is. Though it&#x
536.
by hannob 5y ago
Agora recently had a publication about hydrogen where they also discussed the topic of storage: https://static.agora-energiewende.de/fileadmin/Projekte/2021... According to them there's enough potential for g
537.
by hannob 5y ago
I'm not super motivated to read a long pile of text starting with "If you had unlimited free energy". My answer is: You don't.
538.
by hannob 5y ago
> [2] http://www.helmeth.eu/images/joomlaplates/documents/Publisha ... I've been seen exactly this link thrown at me multiple times when discussing synthetic methane, yet it comes with a fatal flaw: It
539.
by hannob 5y ago
Exactly, just wanted to link this as well. There's of course nothing wrong with pointing out already known security flaws, but it's good practice to mention when this is a well known thing and reference prior work - which the post
540.
by hannob 5y ago
Not sure where to start... 1. These are case reports. Like... three (and they didn't all get the mRNA covid vaccine). The most likely explanation is that these happened by random chance. 2. This is about Herpes Zoster, not the "no

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