This is all based, most likely, on Griffiths' textbook. Quoting here from this post https://www.reddit.com/r/Physics/comments/1b97gt/magnetic_fields_do_no_work_but_magnetic_cranes/ :

The statement "magnetic fields do no work" is incorrect. Griffiths has mislead a generation of physics students on this. A correct version of the statement is that "magnetic fields do no work on objects with no magnetic moments" which is rather trivial. One could also correctly make the same statement about electric fields. However, electric monopoles are very common, so a situation in which there are no electric moments never occurs in normal circumstances.

tl;dr: use Jackson ;)

One of the coolest parts of The Expanse IMHO was that The Mormons commissioned a giant space ship, and it didn't feel forced or far-fetched.

You can also take a fairly selfish view and come to the same conclusion. Like, I don't want to see homeless encampments, or really sick and untreated people, or panhandlers, or (...) while I'm walking around in my city. I can solve this problem by 1) moving to a nice suburb, or 2) having my tax dollars go to fix a problem that affects me. 1) is off the table because I want to live in the city, and 2)

while it helps the greater good

also helps me directly. (2 can also be addressed in a draconian fashion, which is not what I'm advocating at all.)

I think one problem is looking at things as zero sum. It's not. If you are healthy and housed and fed then you're not

to be very crass

an eyesore, you're adding to the fabric of the city. I want street musicians who are playing for fun, not because they're trying to make enough to afford dinner.

if the Democrats truly understood the minimum wage would be $20 or more

In Democrat-controlled California, the minimum wage for fast food workers is $20: https://www.dir.ca.gov/dlse/minimum_wage.htm

I want a button that skips back 10s, turns on subtitles, and then turns off subtitles when we're back to where we started.

Certain crops can benefit think from some shade throughout the day:

The study aggregates the effect of agrivoltaics on crop yields at different sites. Tomatoes saw up to double yield with agrivoltaics, while wheat, cucumbers, potatoes and lettuce showed significant negative impacts and corn and grapes showed minimal impact.

I assume that maximal crop output would happen if you just grow things in their optimal climate, but then you rely more heavily on transportation.

When I'm feeling cool and downloading a *.tar* file, I'll wget to stdout, and tar from stdin. Archive gets extracted on the fly.

I have (successfully!) written an .iso to CD this way, too (pipe wget to cdrecord). Fun stuff.

Not every ISP! Where I live there's an awesome ISP, Sonic, which is pro-NN, and last I heard only offers "best effort" service

which means there's no throttling your link, no paid tiers; if the fiber and hardware can support 10Gbps symmetric, then that's what you get.

Sadly, they're not the norm. And sadly, not offered at my address.

That's an unfair characterization.

It's not just the things they don't like that can't happen...it's also the things they do like that must happen! See, for instance, prayer in school. (Separation of Church and State only applies to satanic stuff or something, idk...)

Double-sided phone could be pretty neat.

Professor should know that it's etymologically Greek, not Latin, so octopi is generally considered to be wrong.

Octopuses, or octopodes if you're feeling badass, would be preferable afaik.

Cycling? Great, increased funding for infrastructure and increased general awareness. Amateur radio? Lower prices for rigs, innovation, and more contacts to be made.

If your interest in a hobby is based on its exclusivity, it may be that you're more interested in exclusivity than in the hobby itself...