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I flew for the first time on a plane last week and I've seen planes take off at the airport. It looks crazy. But being on one is totally different like holy shit. The thing just FLIES. It just.... Soars... Through the sky! Like whoa man. Wtf... It's crazy. With how much these things weigh, it's insane to me the thing can just go up and bam, there we are, we're flying now. Like wow... Dude crazy.

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[-] Melatonin@lemmy.dbzer0.com 42 points 3 days ago* (last edited 3 days ago)

I hate that everybody's like, it's not that big a deal.

We only started doing it 124 years ago! Prior to that it was a very big deal indeed.

Everyone's so fucking smart these days, there's no room for a sense of wonder. It's like being blasé and knowledgeable is cool. It's really not.

You keep flying with your beautiful sense of wonder, Buttflapper!

[-] ArtVandelay@lemmy.world 5 points 3 days ago* (last edited 3 days ago)

Well fucking said. Smoke noodles rarely have room for curiosity, which is where new things often come from.

Edit: Not sure how smarmy know-it-alls became that, but I'm not changing it now

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[-] ben_dover@lemmy.ml 16 points 3 days ago

it works because we believe in it. if everyone would lose faith in airplanes, they'd drop out of the sky.

[-] TheKracken@lemmy.world 5 points 3 days ago

WhhaaahhhHH!!!

[-] Duamerthrax@lemmy.world 2 points 3 days ago

Can I just loss faith in the private jets?

[-] db2@lemmy.world 79 points 4 days ago

Wait until you find out about electricity! 🤯

[-] imPastaSyndrome@lemm.ee 48 points 4 days ago

Computers is teachibg rocks to think

[-] LostXOR@fedia.io 41 points 4 days ago

We grow flawless crystals, slice them into perfect disks, engrave billions of arcane runes onto them with magical potions and rays of light, animate them with lightning, and make them do our bidding.

And then we give them an "intelligence" that can't even count the Rs in strawberry...

[-] feedum_sneedson@lemmy.world 13 points 3 days ago

I think we're doing pretty fucking well, all things considered.

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[-] HaveYouPaidYourDues@lemmy.world 16 points 4 days ago

By filling them with lightning

[-] rockerface@lemm.ee 12 points 3 days ago

Magnets, how do they work?

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[-] Bluetreefrog@lemmy.world 56 points 4 days ago

I used to think so until I realised that air and water are both fluids, except air is thinner.

[-] Tikiporch@lemmy.world 27 points 3 days ago

To be clear to anyone with minds being blown: air is gas and gas is a type of fluid. Water is liquid and liquid is also a type of fluid.

[-] ohwhatfollyisman@lemmy.world 18 points 3 days ago

... gas is a type of fluid.

that goes a long way in explaining some of those farts.

[-] ignirtoq@fedia.io 12 points 4 days ago

Exactly. Ever skip a stone on the surface of a lake? It's like that, except it's a continuous skip, with air instead of water, and you're inside the stone.

[-] Dasus@lemmy.world 7 points 3 days ago
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[-] k0mprssd@lemmy.zip 31 points 3 days ago

I know right.... the wings dont even flap!

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[-] Flocklesscrow@lemm.ee 14 points 3 days ago

I find it equally neat how displacement allows a 100,000 ton ship to float.

As I'm sure most know, planes fly because of the angle of their wings and airframe shape (also known as an airfoil). As moving air flows over the wing it creates downward pressure, which, as a result of Newton's 3rd law (reaction to a force), allows moving air below to create lift. And upsy daisy she goes.

Science.

[-] AlDente@sh.itjust.works 7 points 3 days ago* (last edited 3 days ago)

That lift explanation is innacurate/incomplete. While there may be some equal and opposite forces depending on the angle of attack, the primary reason for lift is due to Bernoulli's Principle. Airfoils have a rounded upper surface with a longer path for air to take, relative to the underside. This requires air to move at a higher velocity over the top, and since A1 x V1 x P1 = A2 x V2 x P2, pressure over the airfoil decreases. It is this pressure differential that creates lift.

In regards to aircraft, Newton's third law of motion applies to thrust from a propeller or jet engine.

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[-] janus2@lemmy.zip 15 points 3 days ago

"It's just always exciting! That amazing moment when twelve tonnes of metal leaves the earth... and no-one knows why!"

"Yes, we do."

"Yeah, but, you know, not really. I mean, we know you need wings, and engines, and a sticky-up bit on the end for some reason, but it's not like we actually know why a plane stays in the air."

"No. No, Arthur, we really do! We- we do, we do know that!"

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[-] SonicBlue03@sh.itjust.works 31 points 4 days ago

Don't forget how high you get.

[-] Zoldyck@lemmy.world 17 points 4 days ago

Last time I flew I didn't get high at all. I must be doing something wrong.

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[-] Draegur@lemm.ee 9 points 3 days ago

Consider the amount of air its wings must displace in order to stay aloft. An equal quantity of mass at least. It's passing through that air and, partly pushing it down, but also partially scraping it thin over the bowed top surface of the wing (the Bernoulli principle) which creates a pressure differential that lifts the wing, pulling it upward through suction, and thus the plane. That's why the plane must go fast to fly, and why it "stalls" and falls if it isn't moving through enough air. It's also how turbulence affects a plane. Differences in air pressure mean that in pockets of low pressure there isn't as much mass being displaced by the wings, not enough lift so it falls.

Now, it's quite likely that my layman's comprehension of this is flawed. But I'm sure it's entirely possible that someone will correct me soon :3

[-] NiHaDuncan@lemmy.world 4 points 3 days ago* (last edited 3 days ago)

To be pedantic: It’s not necessarily an equal amount of mass, it just has to accelerate (this includes deceleration which is acceleration opposing a component of a vector of travel) any amount of mass along and opposite to the vector of the plane’s acceleration due to gravity so long as the amount of mass (and the averaged amount of that mass’ acceleration in the aforementioned direction i.e. force) is in ratio with the planes mass and it’s acceleration due to gravity.

There’s a lot of other pedantic caveats but they’d make this comment far too long. The main thing I want to convey is that mass doesn’t necessarily matter but rather force (m*v) and also that the “suction” and thereby acceleration that a plane’s airfoil experiences is also it causing an acceleration on the air around it by decelerating it along the path that it wants to flow. It all depends on frame of reference.

I suck at explaining things, this video might do a better job at getting the idea across.

[-] Draegur@lemm.ee 2 points 3 days ago

Thank you kindly! :D

[-] Jarix@lemmy.world 5 points 3 days ago

Damn no one has corrected you in 10 minutes. That's pretty good!

[-] Draegur@lemm.ee 7 points 3 days ago* (last edited 3 days ago)

I fully expect to come back to lemmy in 48 hours to find a fascinatingly detailed and viciously incisive rebuttal that calls me at least three slurs in the first paragraph, sprinkles additional passive aggressive repudiations of my character throughout, and finishes with a tactical f-bomb too :D

[-] Entropywins@lemmy.world 3 points 3 days ago

I've got 7 hours left at work I'll drum something up for you...

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[-] FinishingDutch@lemmy.world 7 points 3 days ago

It’s magical, right? It’s what got me interested in aviation - the physics, the science, the engineering to make it work. And we’ve gotten so good at it, air travel is now available to most people, it’s safe and convenient.

I’ve flown exactly three times in my life: a hot air balloon, a helicopter and a DC3. Each was magical in its own way. I’ve also done a fair bit of plane spotting. Seeing an Airbus A380 landing right in front of you is amazing. It really is the size of a large apartment block with wings. Truly awe inspiring.

Aviation is fucking awesome!

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[-] Forester@yiffit.net 19 points 4 days ago* (last edited 4 days ago)

It's simple. You just need 60 tons of lift and thrust. Aerodynamics help but you can make a brick fly.

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[-] dudinax@programming.dev 12 points 3 days ago

An a380 is so big when it takes off it looks like it's moving slow, just kind of hanging in the air

[-] SkaveRat@discuss.tchncs.de 3 points 3 days ago

In much the same way that bricks don't

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[-] theywilleatthestars@lemmy.world 13 points 3 days ago

Glitch that's going to be patched out eventually

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[-] untorquer@lemmy.world 8 points 3 days ago

Crazier to think 60tons of air being pushed down 10m/s^2 (or whatever equivalent mass/acc you want to think with) to keep it up there.

[-] cyberpunk007@lemmy.ca 13 points 3 days ago

"I flew for my first time on a plane"

Now I just feel old.

[-] Mr_Dr_Oink@lemmy.world 21 points 3 days ago

I didn't fly on a plane until i was nearly 30. Dont know if you are in the US, but outside of the US, it's less common to fly anywhere. high speed rail between countries in europe, UK is small enough to drive anywhere, boats and eurostar train to get from UK to Europe. Euro tunnel if you want to take your car to europe.

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[-] milicent_bystandr@lemm.ee 11 points 3 days ago

Crazier still when you consider it's pushed into the sky by its own farts.

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[-] 1984@lemmy.today 11 points 3 days ago

I'm even more impressed by aircraft carriers. Just one of those things weigh as much as 250 fully loaded Boeing 747s. And it just floats. :)

[-] RememberTheApollo_@lemmy.world 3 points 2 days ago

The 777 is 375-ish tons, and the A380 is 630-ish tons.

[-] MidsizedSedan@lemmy.world 3 points 3 days ago

I still look up whenever u hear a plane fly over. Heavier than air travel is treated way to casually

[-] 0485919158191@lemmy.world 7 points 3 days ago

I think you just experienced physics first hand!

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[-] hperrin@lemmy.world 8 points 3 days ago

Turns out, the sky is pretty thick if you hit it hard enough.

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[-] unemployedclaquer@sopuli.xyz 9 points 4 days ago

it's crazy that you can just jump, and you go up for a bit.

[-] GBU_28@lemm.ee 8 points 4 days ago

It doesn't just fly, it rages against gravity, using every possible trick in the book

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this post was submitted on 09 Nov 2024
368 points (96.9% liked)

Showerthoughts

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