Good… and also “bye”.
Ex-tanker turned programmer
もと戦車乗り員;現在プログラマー
English is good, Japanese is okay
英語は普通、日本語はそこそこ
I love puns!
ダジャレ大好き!
Good… and also “bye”.
It doesn’t help that the news focuses on murders and gun crime over anything else, and provides a megaphone for copaganda with zero analysis. If it bleeds, it leads, even if it’s a lie.
Other folks had covered the wing aspect, I wanted to discuss the engine portion. Both are cogent.
This part is half-right: the work of the engine is going to accelerating the plane forward, or (when thrust and drag are in equilibrium) maintaining the current velocity. But in level flight, the engine is not “keeping the plane in the air” - it is impossible for it to contribute to lift directly because it’s force vector is 90 degrees from the lift vector.
Therefore, some of the engine’s energy is going into keeping the plane in the air, and some is going into accelerating it forwards, or keeping it at the same speed (fighting air resistance).
This is where you make an unsupported leap:
Therefore, if the plane points straight up, the engine should be able to support it hovering in the air. If it didn’t have enough power to fight gravity when pointing straight up, it wouldn’t have enough power to fight gravity when moving horizontally, either.
A car can accelerate horizontally because its engine can rotate its tires to apply horizontal force due to friction and mechanical advantage; does that mean it can drive straight up a wall? Of course not (outside of some specialized bouldering vehicles). The engine lacks the power to lift the car straight up, and the tires lack the grip to hold on to a vertical surface. The drivetrain is designed for efficient road cruising, not high power and grip
It’s the same for aircraft, generally: a given engine usually has enough power to accelerate the aircraft horizontally, and applies this through some kind of prop or jet rotor. But this combination is tuned for efficient cruising, not vertical climbing. The engine won’t provide enough power, and the prop can’t move enough air, to sustain vertical flight indefinitely.
“But Sleet01,” you cry, “helicopters exist!” Just so! They trade cruise efficiency for vertical thrust by greatly increasing the size of the prop, increasing the mechanical advantage so that less engine power is needed to hover or climb vertically. That’s like putting 4" wheels covered in suction cups on your car - now it can go straight up, but you can’t go very far or very fast!
“But Sleet01,” you exclaim, “F-15s exist and can fly vertically almost to space!” Indeed they do, but in order to fly an F-15 vertically you need to burn immense amounts of fuel, almost 400 gallons per minute. That’s like putting two turbo V8s in your Jeep - now you have the power to go vertical, but only for a couple minutes!
“So I Married An Axe Murderer.” If you have the means, I highly recommend watching it!
Because these conservative judges are in the bag for the GOP and see an opportunity to hurt two groups of people they really hate:
Edit: IANAL, just really pissed off.
“I got mine, you get fucked,” part X of N?
Meanwhile corporations justify hiking up prices because “consumer spending is still strong.” Yeah, we kinda do gotta keep buying food and paying our bills and shit…
“Toyota backtracked on their stubborn refusal to make pure EVs? Did Toyoda die?” - what I thought reading this.
Turns out I was close: Toyoda stepped down, and the new CEO is apparently gung-ho for EVs.
This is great to see!
I did use the desktop view + Old Reddit + no previews just fine for the past 10 years, but yeah, the mobile view is garbage with a capital “gag”.
A blatant lie. In 2020, 66% of the voting population actually voted - and this was a record high! Of those, 46.48% voted for Biden/Harris. So that’s just under 1/3rd, or 30.68% of the voting population of Texas.
Now, do I feel for these folks? Yes. Is it terrible that they’re being disenfranchised by their state and local governments at every turn? Also yes. Is this going to make me feel at all bad if the state whose main claim to fame is keeping slavery going an extra 2 years splits off, only to get gobbled up by Mexico?
Not in the slightest.