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PugJesus piefed.social PugJesus@piefed.social
Joined: 2025-03-24
Quote

750   Original
Kairos lemmy.today LodeMike@lemmy.today
Joined: 2023-12-26
#2 · Quote Reply

Context hat

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PugJesus piefed.social PugJesus@piefed.social
Joined: 2025-03-24
#3 · Quote Reply

Context hat

Back when NASA was flinging things into space for the first time, the tolerances that were even possible were extremely tight. Every pound mattered (every pound still matters, but because we have other things to do once we get to space nowadays, plus every pound is expensive).

600 pounds of white paint for the fuel tank was considered unnecessary, once the engineering team figured that it didn't actually protect the special foam covering of the fuel tank anyway. Thus the distinctive orange color!

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Kairos lemmy.today LodeMike@lemmy.today
Joined: 2023-12-26
#4 · Quote Reply

Back when NASA was flinging things into space for the first time, the tolerances that were even possible were extremely tight. Every pound mattered (every pound still matters, but because we have other things to do once we get to space nowadays, plus every pound is expensive). 600 pounds of white paint for the fuel tank was considered unnecessary, once the engineering team figured that it didn'...

Oh my eyes glossed over the word "paint". Thanks.

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betanumerus lemmy.ca betanumerus@lemmy.ca
Joined: 2025-02-22
#5 · (edited) Quote Reply

High end bicycle equipment has weight specs in grams.

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atomicbocks sh.itjust.works atomicbocks@sh.itjust.works
Joined: 2025-02-16
#6 · Quote Reply

Fun fact: Columbia, pictured with the white tank, was the heaviest shuttle and was not modified to have the airlock necessary to dock with the ISS because the performance losses compared to the other shuttles made it difficult to use for ISS operations.

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TankovayaDiviziya lemmy.world TankovayaDiviziya@lemmy.world
Joined: 2024-01-22
#7 · Quote Reply

I'm too dumb for maths because I have dyscalculia, but i am always amazed by the engineering crowd on how they could improve efficiency by finding and tweaking just the little things.

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slampisko lemmy.world slampisko@lemmy.world
Joined: 2023-06-11
#8 · Quote Reply

Back when NASA was flinging things into space for the first time, the tolerances that were even possible were extremely tight. Every pound mattered (every pound still matters, but because we have other things to do once we get to space nowadays, plus every pound is expensive). 600 pounds of white paint for the fuel tank was considered unnecessary, once the engineering team figured that it didn'...

Oh, I thought the pictures were backwards. The orange being the natural color and the white being paint is really critical information for it to make sense lol

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dave@hal9000 lemmy.world redbr64@lemmy.world
Joined: 2023-09-27
#9 · Quote Reply

I always thought it looked cooler with the orange tank anyway

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Scrollone feddit.it Scrollone@feddit.it
Joined: 2023-06-03
#10 · (edited) Quote Reply

Back when NASA was flinging things into space for the first time, the tolerances that were even possible were extremely tight. Every pound mattered (every pound still matters, but because we have other things to do once we get to space nowadays, plus every pound is expensive). 600 pounds of white paint for the fuel tank was considered unnecessary, once the engineering team figured that it didn'...

For all the people in the world except the ones from Liberia, Myanmar and the United States, 600 freedom units = ~272 kg

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saturn57 lemmy.world saturn57@lemmy.world
Joined: 2024-04-22
#11 · Quote Reply

The real question is why the default color is orange and not white or gray.

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neuromorph lemmy.world neuromorph@lemmy.world
Joined: 2025-06-04
#12 · Quote Reply

I always thought it looked cooler with the orange tank anyway

Cooler with white, but heavier.

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neuromorph lemmy.world neuromorph@lemmy.world
Joined: 2025-06-04
#13 · (edited) Quote Reply

I'm too dumb for maths because I have dyscalculia, but i am always amazed by the engineering crowd on how they could improve efficiency by finding and tweaking just the little things.

Its simple rocket math. Every lb of weight must consume fuel.

Si.pky. 1 lb of weight needs 1 lb of fuel to escape orbit. But the fuel has weight also. So the effective fuel you need to lift the rocket and payload is exponential.

The harder stuff is orbital mechanics. Getting things into orbit is easy. Having thwm go where you want is the hard part.

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excral feddit.org excral@feddit.org
Joined: 2024-06-25
#14 · Quote Reply

High end bicycle equipment has weight specs in grams.

It's always hillarious to me to see boomers on expensive bikes that aim to save every gram while they could save 20kg on themselves.

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Owl mander.xyz BuboScandiacus@mander.xyz
Joined: 2023-06-09
#15 · Quote Reply

High end bicycle equipment has weight specs in grams.

But, why ? You drink a bit more water that day and it’s void.

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Cort lemmy.world Cort@lemmy.world
Joined: 2023-09-06
#16 · Quote Reply

The real question is why the default color is orange and not white or gray.

The polyurethane spray foam insulation is orange.

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moody lemmings.world moody@lemmings.world
Joined: 2023-08-08
#17 · Quote Reply

But, why ? You drink a bit more water that day and it’s void.

But what if you drank more water and you didn't have the weight savings?

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Town lemmy.zip Town@lemmy.zip
Joined: 2026-03-03
#18 · Quote Reply

Its simple rocket math. Every lb of weight must consume fuel. Si.pky. 1 lb of weight needs 1 lb of fuel to escape orbit. But the fuel has weight also. So the effective fuel you need to lift the rocket and payload is exponential. The harder stuff is orbital mechanics. Getting things into orbit is easy. Having thwm go where you want is the hard part.

The tyranny of the rocket equation. Generally, 1% of weight is payload, 85% is fuel.

https://www.scientificamerican.com/blog/observations/escaping-the-tyranny-of-the-rocket-equation/

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morrowind lemmy.ml morrowind@lemmy.ml
Joined: 2021-10-12
#19 · Quote Reply

Oh, I thought the pictures were backwards. The orange being the natural color and the white being paint is really critical information for it to make sense lol

Yeah same. Orange is much more iconic, glad this happened.

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guy piefed.social guy@piefed.social
Joined: 2024-11-20
#20 · Quote Reply

Cooler with white, but heavier.

Cooler depends on the amount of sunlight available

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psx_crab lemmy.zip psx_crab@lemmy.zip
Joined: 2025-01-11
#21 · Quote Reply

But, why ? You drink a bit more water that day and it’s void.

It's a competition between brand. They're at the point where decrease a single gram is incredible task and are all racing to become the lightest weight and aero-est bicycle and get to claim that.

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MagicShel lemmy.zip MagicShel@lemmy.zip
Joined: 2024-10-14
#22 · Quote Reply

It's always hillarious to me to see boomers on expensive bikes that aim to save every gram while they could save 20kg on themselves.

Perhaps that's why they are on a bike?

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Sabata ani.social Sabata11792@ani.social
Joined: 2024-06-02
#23 · (edited) Quote Reply

Orange makes it go faster. Not the fastest color but it's up there.

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filcuk lemmy.zip filcuk@lemmy.zip
Joined: 2023-08-15
#24 · Quote Reply

Orange makes it go faster. Not the fastest color but it's up there.

Is NASA run by orcs

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Jännät sopuli.xyz jaennaet@sopuli.xyz
Joined: 2025-06-28
#25 · Quote Reply

Is NASA run by orcs
[deleted]
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somethingsnappy lemmy.world somethingsnappy@lemmy.world
Joined: 2023-07-07
#26 · Quote Reply

It's always hillarious to me to see boomers on expensive bikes that aim to save every gram while they could save 20kg on themselves.

If you are trying to lose weight, you should be using the worst, heaviest bike possible.

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FackCurs lemmy.world psoul@lemmy.world
Joined: 2024-02-10
#27 · Quote Reply

It's always hillarious to me to see boomers on expensive bikes that aim to save every gram while they could save 20kg on themselves.

Well, it’s also fun to go places you know. If a shitty bike can only get you 20mi / 30km but a on a good one you feel confident doing a 30mi / 45km ride then the purchase makes sense.

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HugeNerd lemmy.ca HugeNerd@lemmy.ca
Joined: 2025-03-06
#28 · Quote Reply

[deleted]

Oh boy. That was funny.

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HugeNerd lemmy.ca HugeNerd@lemmy.ca
Joined: 2025-03-06
#29 · Quote Reply

It's always hillarious to me to see boomers on expensive bikes that aim to save every gram while they could save 20kg on themselves.

Or skinny dudes with enormous ballsacks wearing tight Spandex on 15 pound carbon fiber bikes, but a 20 pound motorcycle lock.

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wieson feddit.org wieson@feddit.org
Joined: 2024-06-24
#30 · Quote Reply

For all the people in the world except the ones from Liberia, Myanmar and the United States, 600 freedom units = ~272 kg

Thank you, finally something sensible

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SpongyAneurysm feddit.org SpongyAneurysm@feddit.org
Joined: 2025-06-29
#31 · Quote Reply

If you are trying to lose weight, you should be using the worst, heaviest bike possible.

Well, not if you still want to have some fun while doing so.

But I agree, that a regular bike should suffice and you don't need to worry about optimizing gear weight if you're not competing for anything and just ride it for your own well-being.

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_stranger_ lemmy.world _stranger_@lemmy.world
Joined: 2023-08-02
#32 · Quote Reply

If you are trying to lose weight, you should be using the worst, heaviest bike possible.

That's a stationary bike

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megopie beehaw.org megopie@beehaw.org
Joined: 2023-06-19
#33 · Quote Reply

It's a competition between brand. They're at the point where decrease a single gram is incredible task and are all racing to become the lightest weight and aero-est bicycle and get to claim that.

And then you have E bike companies producing lead bricks that are non-functional without the motor doing 90% of the work. Or with the massive motorcycle seats that make pedaling actually impossible.

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wolfpack86 lemmy.world wolfpack86@lemmy.world
Joined: 2023-06-22
#34 · Quote Reply

If you are trying to lose weight, you should be using the worst, heaviest bike possible.

Well, not necessarily. A bike that's got a full carbon frame also absorbs shock and vibration from the road better. This means you can ride longer distances without getting fatigued in places like your wrists or ass. Longer rides = more exercise.

But once you have a carbon frame, chasing grams on other components gets to be a bit silly.

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jeffep lemmy.world jeffep@lemmy.world
Joined: 2026-02-17
#35 · Quote Reply

Well, not necessarily. A bike that's got a full carbon frame also absorbs shock and vibration from the road better. This means you can ride longer distances without getting fatigued in places like your wrists or ass. Longer rides = more exercise. But once you have a carbon frame, chasing grams on other components gets to be a bit silly.

You could also just walk whenever possible, burns more kcals/distance

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Magnum, P.I. infosec.pub Magnum@infosec.pub
Joined: 2025-12-31
Banned
#36 · Quote Reply

Cooler depends on the amount of sunlight available
[removed by moderator]
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Agent641 lemmy.world Agent641@lemmy.world
Joined: 2023-07-12
#37 · Quote Reply

The polyurethane spray foam insulation is orange.

That's the default skin. It costs 100,000 doubloons to unlock the sick neon green and black skin.

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Agent641 lemmy.world Agent641@lemmy.world
Joined: 2023-07-12
#38 · Quote Reply

Fun fact: Columbia, pictured with the white tank, was the heaviest shuttle and was not modified to have the airlock necessary to dock with the ISS because the performance losses compared to the other shuttles made it difficult to use for ISS operations.

But didn't it have ejection seats at one point?

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BradleyUffner lemmy.world BradleyUffner@lemmy.world
Joined: 2023-06-11
#39 · (edited) Quote Reply

You could also just walk whenever possible, burns more kcals/distance

That's less efficient time-wise though, since it takes significantly longer to walk the same distance compared to riding.

Ie, riding 2 hours burns FAR more calories than walking for 2 hours.

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autriyo feddit.org autriyo@feddit.org
Joined: 2024-06-26
#40 · Quote Reply

Well, not necessarily. A bike that's got a full carbon frame also absorbs shock and vibration from the road better. This means you can ride longer distances without getting fatigued in places like your wrists or ass. Longer rides = more exercise. But once you have a carbon frame, chasing grams on other components gets to be a bit silly.

I've yet to ride a carbon frame for any amount of real distance, so idk how good they actually are.

But having a less harsh ride can also be archived by not using the thinnest pizza cutter tires at 10 bar. Especially if we care about time ridden and not avg. speed.

And it's going to be slightly harder to get the same speed out of comfy tires, so that's also more exercise.

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yermaw sh.itjust.works yermaw@sh.itjust.works
Joined: 2025-07-10
#41 · Quote Reply

SIX HUNDRED EL BEES? HOLY FUCK THAT'S A LOTTA PAINT.

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Starski lemmy.zip Starski@lemmy.zip
Joined: 2025-08-28
#42 · Quote Reply

For all the people in the world except the ones from Liberia, Myanmar and the United States, 600 freedom units = ~272 kg

You can just give a conversion without being snarky about it

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tetris11 feddit.uk tetris11@feddit.uk
Joined: 2025-02-17
#43 · Quote Reply

For all the people in the world except the ones from Liberia, Myanmar and the United States, 600 freedom units = ~272 kg

That's 4 and half men. Or a minivan's worth of kids. Or 100 buckets of KFC

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tetris11 feddit.uk tetris11@feddit.uk
Joined: 2025-02-17
#44 · (edited) Quote Reply

I'm too dumb for maths because I have dyscalculia, but i am always amazed by the engineering crowd on how they could improve efficiency by finding and tweaking just the little things.
  • Artemis tanks were 10m wide and 30m tall.
  • Cylinder surface Area = (2.pi.r^2^) * (2.pi.r.h) ^[curved area plus top and bottom circles]
    • 2 * pi * 5 * 30 ~ 1100m^2^ to paint
  • Paint paints about 10m^2^ per Litre paint
  • Need 1100 / 10 = 110 Litres of paint
  • 1L of paint weighs about 2kg
  • 110 Litres of paint weighs about 220kg
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icelimit lemmy.ml icelimit@lemmy.ml
Joined: 2025-06-01
#45 · Quote Reply

I'm too dumb for maths because I have dyscalculia, but i am always amazed by the engineering crowd on how they could improve efficiency by finding and tweaking just the little things.

Til dyscalculia. I hope you weren't born in asia

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TankovayaDiviziya lemmy.world TankovayaDiviziya@lemmy.world
Joined: 2024-01-22
#46 · Quote Reply

Til dyscalculia. I hope you weren't born in asia

I am Asian 😂 I refuse to live up to the stereotype!

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Lucky_777 lemmy.world Lucky_777@lemmy.world
Joined: 2025-02-28
#47 · Quote Reply

The tyranny of the rocket equation. Generally, 1% of weight is payload, 85% is fuel. https://www.scientificamerican.com/blog/observations/escaping-the-tyranny-of-the-rocket-equation/

The sooner humans can move past rocket tech the better to be honest.

0
Lucky_777 lemmy.world Lucky_777@lemmy.world
Joined: 2025-02-28
#48 · Quote Reply

That's the default skin. It costs 100,000 doubloons to unlock the sick neon green and black skin.

That's only if they release the DLC. Devs keep blowing their budget on the tech tree

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0x0 lemmy.zip 0x0@lemmy.zip
Joined: 2025-04-04
#49 · Quote Reply

[deleted]

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0x0 lemmy.zip 0x0@lemmy.zip
Joined: 2025-04-04
#50 · Quote Reply

[removed by moderator]

I thought Cell was green?

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0x0 lemmy.zip 0x0@lemmy.zip
Joined: 2025-04-04
#51 · Quote Reply

For all the people in the world except the ones from Liberia, Myanmar and the United States, 600 freedom units = ~272 kg

So about 31 adult badgers.

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