CuriousRefugee

joined 1 year ago
[–] CuriousRefugee@lemmy.ml 5 points 1 week ago

What YEAR is it? My 10-year-old self would be so excited for this

[–] CuriousRefugee@lemmy.ml 31 points 1 week ago (4 children)

Yes, there's a bit of a myth around Bernoulli's principle (faster moving fluids have lower pressure) and how much it matters for lift in plane wings. It came up in the conversation because I was trying to describe what air pressure is in general, and made an analogy to a pan flute (he plays flute in band).

Disclaimer: I'm an aerospace engineer, but I do not claim to be an expert on topic.

But for plane wings, the myth is really that the air above the wing moves faster because the curved surface is longer. That's pretty much dead wrong, but is still in tons of textbooks. The air above the wing does move faster, but it's because of a bunch of complicated physics that to be honest, I don't really understand any more. I may have even been taught wrongly in college. But the result is that there is a velocity difference on a cambered wing even when it's flat, and thus Bernoulli's principle does apply, and there is a pressure difference giving you lift.

But that speed difference is mostly important at cruising altitude, when the wings aren't angled, and it's positively correlated with airspeed, so the thrust matters way more. When you're climbing, the angle matters more. The camber (curvature) of the wing, the airspeed, and the angle of attack all lead to that pressure difference, along with a few other things like circulation, which is also caused by a sharp edge at the back of the wing. But everything kind of works together to generate that pressure difference and hence the lift that can combat gravity. It's actually pretty hard to try and dumb it down without saying things that aren't wrong.

[–] CuriousRefugee@lemmy.ml 32 points 1 week ago (8 children)

I recently taught my 11-year-old nephew "how planes fly." A bit oversimplified, of course, but words like camber and lift and circulation were tossed around along with Bernoulli's principle.

[–] CuriousRefugee@lemmy.ml 1 points 1 week ago

"My neighbor Jerry wrote his password on a post-it note and stuck it to his monitor that I can see through the window. Let me just add it to the database..."

LARGEST PASSWORD LEAK EVER RELEASED BY BOB SMITH OF 123 MAPLE ST!!!

[–] CuriousRefugee@lemmy.ml 2 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

I pay for MLB TV, because I live in a different media market than my favorite team. So it works perfectly! Unless I'm visiting my parents. Or often when I'm traveling. Or is the game is on cable. Or the weird exclusive games like Apple TV. Or if it's the playoffs. Or because the chemtrails are too thick that day so the lizard people are out. But works perfectly!

Seriously, though, MLB does work pretty well and I do like some features (syncing radio broadcast with the TV, condensed games if I missed one). But it's very weird that most of my family who lives within 20 miles of the stadium can't watch the team when I live hundreds of miles away and can.

[–] CuriousRefugee@lemmy.ml 2 points 2 weeks ago* (last edited 2 weeks ago)

Oh wow, deep cut! I had that buried somewhere in the back of my brain.

[–] CuriousRefugee@lemmy.ml 17 points 2 weeks ago (1 children)

And he (Admiral Motti) got the first name of Conan by George Lucas while on the Conan O'Brien show!

[–] CuriousRefugee@lemmy.ml 37 points 2 weeks ago (1 children)

Outrageous! It's terrible what people can force devs to do. I would like to apologize for my fellow human's behavior personally; can you give me the name of the game and/or a download link? Or at least some screenshots, so I can, uh, be further outraged.

[–] CuriousRefugee@lemmy.ml 16 points 2 weeks ago (4 children)

I got one of those powerful rare earth magnets, so my lost screw percentage is way down, from 99% lost to only about 95% lost now!

[–] CuriousRefugee@lemmy.ml 15 points 2 weeks ago

Just updated this morning, shit. Working okay so far, though.

[–] CuriousRefugee@lemmy.ml 9 points 4 weeks ago

What a gorgeous kitty!

[–] CuriousRefugee@lemmy.ml 3 points 1 month ago (1 children)

Don McLean has definitely substituted the chorus from The Saga Begins when he's doing live shows

view more: next ›