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ffs, every time someone from a community group asks me “Can you have a quick look at our basic website, we just need to change <reallySimpleThing>”, and I’m like “sure, i used to do web development, let’s have a look […] FFFFFFUUUUUC…”
4·3 months agobtw
Easy with
sudo apt remove --purge --allow-remove-essential --auto-remove systemd:
:-D Time to go outside.
20·6 months ago~623 km/h in today’s units.
double-check for security vulnerabilities
triple-check is better.
Part of me thinks you’re being unreasonable, because that question did receive decent responses (1 CLI + GUI suggestion, 1 GUI suggestion, and 2 beginning to try troubleshoot the drive access problem).
But I suspect it’s just a dissonance in perspectives, maybe due to your Linux distro causing a bunch of stupid issues, which haven’t been properly noticed by anyone yet.
It’s a shame that some distros like Ubuntu have enshittified so badly that they’ve become unsupportable. (Nothing seems to work rationally – the same reason I find it impossible to support users on Windows).
Advocates and potential/new users alike, need to consider specific distributions, not just “Linux”.
Find a folder comparison software [with only Gui]
A quick web search (even without ‘graphical’) turned up pages suggesting meld in the first few results.
So… I really don’t know chemistry, and these aren’t the highest quality references, but here goes:
- 4 mol of iron in a heat pack provides 1648.4 kJ of heat. [1]
- 4 mol of iron weighs 223g. [2]
- Recycling 1000kg of steel saves 642 kWh of energy. [3]
- Recycling 0.223kg steel saves 642 * 0.223 / 1000 = ~ 0.143 kWh
- 0.143 * 3600 = 515 kJ
Huh. So maybe heat packs are a reasonable use of scrap iron’s embodied energy after all. Assuming you have a sufficient source of uncontaminated steel filing waste and that it’s economical to collect and process into heat packs.
…But only if you’re heating your water using fossil fuels using an inefficient method! If your water is heated using solar or waste heat capture or a heat pump[4], which would swing the balance way over to hot water bottles again.
You’re not considering the energy required to smelt the iron.
Iron filings (in a collected quantity high enough to make manufacturing these heat packs worthwhile) are not a waste product, they are recycled – saving the smelting of that much new iron.
Sawdust+iron heat packs are a very useful and non-hazardous product, for sure, but aside from situations where a hot water bottle is impractical, hot water bottle still wins.
An excellent discrete maths textbook for those missing the inclusion of the subject in the course: Discrete Mathematics - An Open Introduction, 3rd edition by Oscar Levin