TIL NASA is woke.

(/s shouldn’t be required but here we are…)

You mentioned ham radio — definitely fun! It’s a process to get into it though, as you need to study/pass an exam, and then you need a radio. Radios range from cheap ($25 or so) in the VHF/UHF (“walkie talkie”-style) to more expensive for an HF rig ($1000 range for 100W HF). If you want to get into low power (“QRP”) it can be much cheaper. You also need a fair amount of space for a good antenna setup…

There are tons of different communication modes, some without a computer and, like you mentioned, some that use computers. wsjtx and fldigi are popular programs.

Good luck!

*flea

You’re just gatekeeping.

ThinkPad with a generator? Nothing wrong with that — maybe add LoRa, get a ham license and add some packet radio or digital modes and you have a neat disaster setup.

MacBook that you don’t want to scuff? Well, I’m not that precious with my gear, but you do you. Many Mac laptops last a very long time, and the performance of modern Apple silicon is really, really impressive — and you have UNIX out of the box. Plenty for a tech enthusiast to like.

It’s not all bad — remote work policy is now a major topic. You’d be laughed out of any number of job interviews for asking about remote work policy, whereas now it’s a completely fair question.

With coherent detection I think the separation between eyes would allow for this.

Except that this problem doesn’t specify distance between horseman, so I think it’s a bit bogus — no need to resolve an individual person to be able to tell that they’re there. And for hair color, if you make assumptions about the clothes being worn, you could perhaps infer color of hair, even if the hair isn’t resolvable (a person being a “single pixel” would have a different hue depending).

Dipoles are, effectively, not — so if you have a charged bit and another opposite charged bit, while an inverse relationship might exist between either one, the net effect is that it drops off much faster.

The thing with gravity is it tends to go one way, unlike, say, charge.

We’re in the market for a kid carrying ebike, and while REI makes the most financial sense, I think we’ll be paying a visit to our LBS.

As an aside, I tend to prefer Sports Basement. Have had better luck with their bike department, too. No idea if they’re better from a corporate standpoint though.

This is the real big brain hack with decibels — you can use a linear scale, it’s just that the units are logarithmic instead.

(Yes I know most people would call a dB axis logarithmic, it’s just a silly comment.)

My $4k piece of carbon and $3k hunk of titanium would like to have a word…

I would bet just about anything that the only reason profit margins could possibly be higher for a car is due to volume — which, if everyone rode bikes, wouldn’t be an issue at all.

Absolute profit, sure — cars are more expensive, so they’ll win out.

We still use leaded gas for aviation, as does (I believe) the EU (I’m guessing RoW, too).

(Supposed to be banned this year in the EU but AFAICT pushed back until 2032.)

Deja vu is usually a glitch in the Matrix. It happens when they change something.

Fail2ban config can get fairly involved in my experience. I’m probably not doing it the right way, as I wrote a bunch of web server ban rules — anyone trying to access wpadmin gets banned, for instance (I don’t use WordPress, and if I did, it wouldn’t be accessible from my public facing reverse proxy).

I just skimmed my nginx logs and looked for anything funky and put that in a ban rule, basically.

And probably only the second half of the 2nd amendment.

The lack of logic is astounding.

These are the same people who think abstinence only education works. Safe to say they’re a few fries short of a Happy Meal.

Judging by the camera angle, OP may have been today years old when they learned this as well (I learned it well into my 30s, too).

Windows is just as hard as linux, harder even with all the layers of obscurity.

With Windows, there is 1 current version of Windows (11), 1 “almost current” (10), 1 “outdated but you’ll maybe see it” (8.x) and only a few “you’ll probably only see this in obscure situations” versions. Linux has as many “parent” distros/package management systems (apt, rpm, pacman, etc.). This definitely complicates things, as each distro family does things slightly differently.

And we haven’t even touched the window manager/DE choices, of which there are a ton (as opposed to Windows). “Combinatorical explosion” maybe isn’t the right phrase, but you get the idea — Debian with i3wm is wildly different from Fedora Plasma.

This is all a good thing though, as Linux users tend to like the choice and flexibility — but it does mean that the “right way” to do something on Linux is very dependent on your particular setup, which isn’t the case with Windows.

(I have used Linux for the last 20+ years, and it’s definitely my preferred setup, and am lucky enough that I rarely use Windows for work, and never for personal use.)

My favorite is Barry Marshall. He thought there was a connection between bacteria and ulcers, which was an unpopular opinion at the time. So he intentionally drank the offending bacteria, got sick as expected, and then people believed him.

More here, including (which I didn’t know until now) cardiac catheterization.

I’m sure better sources exist but https://www.discovermagazine.com/health/these-five-doctors-experimented-on-themselves-and-made-big-breakthroughs

Innovation, perhaps; progress…that’s something else.