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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.)