I was writing up my problem set answers once, and it involved the (complex analysis) residue. I wasn’t sure if there was a shortcut (as opposed to \mathrm); googling latex residue did not produce the search results I was hoping for…

This is obvious though — currently, you might test a drug on mice, then on primates, and finally on humans (as an example). It would be faster to skip the early bits and go straight to human testing.

…but that is very, very, very wrong. Science of course doesn’t care about right and wrong, nor does it care if you “believe” in it, which is the beautiful thing about science — so a scientifically sound experiment is a scientifically sound experiment regardless of ethical considerations. (Which does not mean we should be doing it of course!)

Now, taking a step back, maybe you’re right that, in the long run, throwing ethics out the window would actually slow things down, as it would (rightfully) cause backlash. But that’s getting into a whole “sociology of science” discussion.

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 ;)

Or it’s rage baiting/humor 🤷

Jobs created toxic work environments.

…and so did Linus Torvalds* — he’s certainly not the embodiment of capitalism. But I absolutely have a huge amount of respect for Torvalds, even if I don’t approve of his way of interpersonal/professional style.

(I used to run Arch btw [but I run Debian now].)

*He’s supposedly taken steps in the right direction here and has made improvements.

I can only remember this because I initially didn’t learn about xargs — so any time I need to loop over something I tend to use for var in $(cmd) instead of cmd | xargs. It’s more verbose but somewhat more flexible IMHO.

So I run loops a lot on the command line, not just in shell scripts.

If it’s a campus bus it’s almost certainly free, and probably timed to class schedules. If you only have 10m or so between classes it makes sense.

I thought it was just “Slashdotted.”

Newer macOS is not Unix certified.

It’s UNIX 03 compliant https://en.m.wikipedia.org/wiki/Single_UNIX_Specification

One or two Linux distros were (are?) UNIX certified, though.

What’s the alternative? Strong arm a democratically elected — even if stupid at times — government to change policy? That’s a terrifying precedent.

The other alternative is to backdoor or otherwise compromise users in other jurisdictions. Glad they didn’t do that.

You can ride your bike on many highways in the USA at least. Generally you cannot on the freeway, but there are some exceptions — in California there are requirements about bike accessibility which means that certain segments of a freeway may be bike accessible.

If you live far from a store then groceries are a problem unless you use a trailer, but if you live in a city it’s totally reasonable to use a bike (or walk) for your weekly groceries.

And you can get a new Trek FX for under $600, and that’s just from a quick search. Yes of you want Ultegra or better and a carbon frame, the sky is the limit.

I think mplayer has an ASCII output mode (VLC, too?), and I believe youtube-dl can output to stdout.

The rest is, as they say, left as an exercise to the reader.

Sounds like he was a mantis and was posting while copulating.

Haha yeah that was the counter example I was thinking of. I agree completely — you could make a Gentoo from source beginner distro, and I think you could make it reasonably “idiot proof,” but it would still be a bad user experience most likely (too much time spent compiling).

If your distro can’t be forked into a “beginner distro” then it’s fundamentally flawed IMHO.

To be clear, I’ve used Arch as my daily drivers for a while, and while it’s not the best fit for my needs (I use Debian mostly), there’s nothing that I experienced that was incompatible with a “beginner” distro.

You can also drop cache for debugging by running something like echo 3 | sudo tee /proc/sys/vm/drop-caches

But remember that the kernel knows best — this RAM will automatically be freed up when needed and you should never run this except for debugging (or maybe benchmarking).

I switched from raspberry pi and orange pi to a cheap Intel NUC, and I think it’s just a much nicer experience.

The pi is great fun, but the HW transcoding on a NUC “just works,” and the SSD and 16GB RAM opens a lot of doors. My N100 NUC was less than $150, and it included everything (case, power supply, 500GB SSD).

My pi found new life as an off-site backup: attach a big HDD, set up WireGuard, and have a cronjob do daily rsync and snapshots. I have it set up at in-laws, and it works great.

I have one SSID with pihole (which I use), and one without. Works pretty well, if you’re ok with a VLAN-aware network.

My comment from cross post:

Sounds like it was a 2 petawatt pulsed laser, with picosecond pulses, so 2kJ/pulse. Staggering amount of power and energy for a pulsed laser!

Note that it’s not CW, so the average power will be much, much, much less than the pulsed power. Too lazy to find the rep rate to see average power.