And over twice the GDP.

“Wow you signed the document in blood, you must be really hardcore.”

“No I’m just cheap.”

That’s…pretty believable.

The amount of money you save (and invest) isn’t accurately depicted with this though. Living expenses don’t necessarily grow with take home, if you keep lifestyle creep to a minimum.

So what this means is that if you make $100k and save $10k/year, if you start making $200k you can save the same $10k/year, plus the entire additional $100k after taxes (let’s just say that’s $50k+). So you doubled your salary but your savings went up 6x+.

I’m curious how the battery percentage went up

Physicists hate this one weird trick…

Is that true though? As in, is it really that dangerous? It seems that you’ll dissipate power equal to the inefficiency times the nominal charging power, so something like 5V x 2A x inefficiency (inefficiency being 1-efficiency), which will probably be of order a watt.

I can use my car battery to charge itself without any issues — I just plug the red terminal to itself, and same with the black, which is to say, a battery is always connected in a way that “charges itself.”

I think the key is that the battery probably isn’t really playing a big role in OOP’s setup — electricity doesn’t “go through the battery,” it just goes from the charging input to the power output circuits, with the additional power (due to inefficiency) being provided by the battery.

I’m not sure though — the power output and the charging input are both regulated and (almost certainly) current limited. So I think (not positive…) that you’re basically dissipating your power in the inefficiency the charging and output circuits, with this power coming from the battery.

The inefficiency should (I think…) just be the round-trip inefficiency of the charging/discharging of your power bank — this should be way, way less than the short-circuit power dissipation.

The simplest toy model is to take a battery and try to charge itself. So you put jumpers on the + terminal and you connect those to the + terminal, and same for - (charging is + to +, NOT + to -). But this is silly because you’ve just attached a loop of wire to your terminals, which is equivalent to doing nothing. With charging circuits in between things get much more complicated, but I’m not sure if it goes full catastrophic short…

For 75kg (roughly average South Korean male weight) and 7" step height (standard in the US I think, not sure about Korea), this is about 0.13kJ/step.

By coincidence, the human metabolic efficiency is (roughly) the same as the conversion between kJ and food (kilo)calories, meaning this would be (very roughly) 0.1 calories/step.

Not much, given a single French fry is maybe 5-10 calories. But it’s better than nothing!

Isn’t universally funny.

If you don’t want to sail the high seas, and you don’t want to pay, the library is a great, free option.

Many, many (most?) commercial ham radios are powered by ~12VDC, and can be run directly off of a car battery in many cases (always use a fuse, kids!).

Who the fuck said we had to choose either?

They did, and pointing that out will (I’m guessing) be met with some form of covering their ears and saying “nah nah nah I can’t hear you.”

Repulsa wants to blow up the sun, and only you two can stop her!

Just want you to know we’re all rooting for you!

Someone described respectful ways of interacting with children similarly — you can bring yourself down to their level, or you can bring them up to yours. Both are respectful, and there’s no “talking down” to anyone.

Pick your favorite tech company, pick a small team with a “nerdy” engineering mandate, and I’m confident you’ll find the academic, geeky science and engineering types you’re talking about.

They probably aren’t very vocal though, because 1) there’s a huge PR/marketing budget which is responsible for being the face of the company, and 2) well…these are nerdy STEM folks who probably like their job because they get very well compensated to be nerdy STEM types, and not because they’re fanboys/girls.

And environment — DISPLAY and PATH in particular.

hopefully someone will appreciate it 😋

Not sure if wholesome, or wants there to be a car crash…

(I know what you mean, I just found it humorous.)

Our experience is that basically the only really expensive thing is childcare. Are you eligible for subsidized, or free, care (or have trustworthy and willing relatives)?

As for gear, babies don’t need much. But for what they do need, reach out to friends, neighbors, and family! We’re fortunate that we could have afforded everything new, but we really only bought a few things because friends and randos alike gave us so much free kid stuff (we bought a nice stroller, a baby basket, and an IKEA crib — basically everything else was a hand-me-down). Join local “buy nothing” groups, or parent groups (sadly they’re usually WhatsApp, but whatever). Most people hate throwing away stuff, and would rather it go to a good home.

Look at programs for subsidized/free necessities like diapers. There are lots of resources out there, especially in cities.

As everyone else said, no one feels ready. We certainly didn’t!

What kind of cutlery are you dropping that requires refinishing your floor?

50kW class laser.

Another source claims 1um wavelength with individual 1.5kW lasers in a hex pattern — unclear if it’s a phased array (would be awesome) or just trained on the same target (source mentions they are “combined using a mirror” so probably the latter).

Sounds like maybe high power YAG?