Scotch as in the tape, not the whisky

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Joined 2 years ago
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Cake day: July 26th, 2023

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  • wha wha what

    no, it’s an organic solvent like ethylene carbonate/propylene carbonate + some other stuff, which have a boiling point of 230+°C ( 446°F)

    heating up batteries is (mostly) fine (under controlled scenarios with known good batteries, spicy pillows can always happen with bad batches) as long as the plastic holding them together doesn’t melt

    you physically CANNOT make a lithium ion battery with water because lithium reacts with water

    from the wikipedia page

    Lithium reacts vigorously with water to form lithium hydroxide (LiOH) and hydrogen gas. Thus, a non-aqueous electrolyte is typically used, and a sealed container rigidly excludes moisture from the battery pack. The non-aqueous electrolyte is typically a mixture of organic carbonates such as ethylene carbonate and propylene carbonate containing complexes of lithium ions.[45] Ethylene carbonate is essential for making solid electrolyte interphase on the carbon anode,[46] but since it is solid at room temperature, a liquid solvent (such as propylene carbonate or diethyl carbonate) is added.









  • I’ve been in Vienna from time to time, and it’s pretty good, 365€/year for the pass that gets you buses, trams and subways with unlimited access and no turnstiles anywhere, you just go and enter

    Schedules follow work hours and go from a subway every 2 minutes during peak hours to one every 15mins late at night

    You have night line buses for weekdays and on Saturday night public transport doesn’t shut down

    Coverage is good, you almost always have a bus or tram line less then 5 minutes of walking

    There are bike sharing places with 20 bikes each ~1km apart and they cost 60 cents for half an hour, or e-scooters in the designed locations which are basically everywhere (but being owned by companies they cost so much more then everything else)