I fucking love how nerdy this place is

Watch him as he codes

Not to be “that guy” on top of you being “that guy,” but it’s not unheard of to completely redirect a dammed river with a chute spillway. I’m gonna pretend the spillway exits that mountain to the right of what we can see lol

Me if I were in my 20s in 1994: “Hey wait is that that spastic drummer from Nirvana? What, thinks he can pull off being a front man? Psh…”

Thanks Dave Grohl for being like, the chillest rock star ever.

Oh neat! I started looking at propane tanks, then switched to air compressor receivers when I found ones rated for 300 psi, knowing propane is generally 100-200 psi. But now I’m finding some propane tanks rated for 600+ psi…sooooo…guess it depends?

“pools are perfect for holding water”

Oh no, it totally matters. In the case of a receiving tank, rated for 300 psi internal pressure vs 1 atm external. The limiting factor there would be tensile strength, or how well the material resists being pulled apart. Sticking it underwater with 1 atm internal would test a combination of compressive and tensile strength, but more compressive (if it were a perfect sphere, it would just be compressive). Good news is, steel is a relatively good choice for both.

Which was one of the complaints about the material choice for the Titan; Carbon fiber has high tensile strength, but low compressive strength. The strength of the hull had more to do with the resin than the carbon fiber itself. In fact, I’d be curious to know if there was even a benefit to using carbon fiber over regular fiberglass. That and it’s hard to inspect for fatigue compared to other materials like steel.

Case and point: Deepsea Challenger, the sub used by James Cameron to go to the bottom of the Marianas Trench, had a pressure hull made of steel.

I mean, today, entirely seriously, I spent about an hour looking at used prices for air receivers for this exact purpose. You can totally get 250 gallon tanks rated to 300 psi that are about the right size to fit one person and all the electrical components inside. Cut off one end and replace it with an acrylic/poly-carbonate dome, add a keel, ballast system, and thrusters on the outside, cover it all with a fairing, and you’re good to go!

I’m thinking I could prototype a functional sub rated to 150 m for around $10k. Totally worth it.

Trust me, I’m an engineer as well lol

I can’t wait until we get bots that verge on gaining sentience, like good-ole u/bobby-b-bot

Sorry, Lemmy is being weird and won’t let me post a top-level comment, but had to get this meme out lol

Welcome to the internet! So exciting to have someone who’s brand new to how things work here.

it’s used by military forces all around the world

Yeah, wired Xbox controllers, not wireless Logitech crap. You willing to entrust your life to a working Bluetooth connection?

Certainly no need to reinvent the wheel. But maybe use something stronger than dental floss to secure it to the axle.

God, there’s a joke in there about 404 (famous drum sequencer, often referenced for its kick sample), but I just can’t get there

Venn Diagram of Fediverse users vs XKCD enjoyers:

Incorrectly?

rot_speed = 4294967296 rpm

c = 299792458 m/s

prop_speed_of_light = 0.057

tip_speed_actual = c * prop_speed_of_light

radius = tip_speed_actual / (rot_speed)(60 sec/1 min)(2π)

radius ≈ 11 µm

neurodivergent folks on the spectrum emulate [empathy]

Cat jokes aside, bit of a misconception; ASD folks generally have comparable levels of empathy to neurotypical folks, it’s just perceived that we don’t because we often either lack cognitive empathy, or don’t express it like others expect.

I, for one, actually have pretty good cognitive empathy. I actually struggle with too much affective empathy; I often involuntarily feel what those around me are feeling. It’s awesome at concerts. Sucks in public transportation. Being stuck in a loud, smelly metal tube, rubbing shoulders with hundreds of anxious or irate commuters is my own personal hell.

All I know is, my gut says “maybe”