I have done this using a usbc power bank explicitly rated to 20v. You only need a usbc power delivery trigger (which are not expensive).
I used diodes from a washing machine to drop from 20v to about 18.8v in my case. These dissipate quite a bit of heat so my cable has an extra metal plate as heatsink. I would put the diodes in the middle of the cable if I'd make it again. It is good for keeping it topped up as the current is lower and the heat stays lower too.
Wow. So Global Aviation puts as much carbon in the air every year from a fossil fuel source which we can't put back than the unique and terrible wildfires Canada had in 2023.
We sure need to fly less!
VW indicated they'd go back to physical buttons due to consumer and reviewer feedback. Not sure if that already happened but they seem to be listening.
Might it be that the chargers are mostly less known? The few times I wanted to have a charger on the road there were ample (fast) options on my way. Discoverable through various apps. This is within Europe, no idea about other places. Europe also has CCS for fast charging so no connector issue (adapter needed on Tesla but it works).
It used to be more of a challenge 10 years ago but even then is was feasible to reach destinations quite far. Detours were sometimes needed back then.
Water also needs a substantial amount of energy to evaporate, hence it will sip some heat from the environment around it when it evaporates. Combined with the good thermal conductivity of steel, the bridge cools off.
You get a similar effect when walking out of a hot shower. The hot water evaporates and cools you down.
Mercedes's stars have been on springs for decades indeed. You can easily push them over (but make sure you put it back nicely). I think Rolls Royce's Spirit of Ecstasy pops back into the hood but I don't know how that works on impact.
I write my notes in org-mode. It's supported in many editors in a basic form, letting you add code snippets etc in an unobtrusive way. Using a well thought out format helps you in the long run.
I use this in Emacs, through which it lets me refer to emails, execute code snippets, attach related files, fetch content on/from remote servers, send off the debug session as an html email, ... Support will depend on your editor but even as raw text it works.
I don't use something specific to make non-code repeatable as you suggest here, but you could embed a test language in an org code block.
The syntax is straight-forward and exports to multiple external formats exist (eg: html).
Nice script. What is the reason to toggle the brightness?
I totally forgot about that :P That would be great indeed.
The PD trigger board may be much more involved/expensive though and I have not seen any budget battery banks supporting it. One can dream.
I expect consuming devices to adapt themselves to the three or four commonly provided voltages for the foreseeable future.