749
Every little bit counts (media.piefed.social)
top 50 comments
sorted by: hot top controversial new old
[-] redbr64@lemmy.world 182 points 5 days ago

I always thought it looked cooler with the orange tank anyway

[-] neuromorph@lemmy.world 39 points 5 days ago

Cooler with white, but heavier.

[-] guy@piefed.social 23 points 5 days ago

Cooler depends on the amount of sunlight available

[-] Magnum@infosec.pub 21 points 5 days ago
load more comments (4 replies)
load more comments (1 replies)
[-] Sabata11792@ani.social 103 points 5 days ago* (last edited 5 days ago)

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

[-] filcuk@lemmy.zip 35 points 5 days ago
[-] jaennaet@sopuli.xyz 30 points 5 days ago
[-] 0x0@lemmy.zip 29 points 5 days ago
[-] jaennaet@sopuli.xyz 8 points 5 days ago* (last edited 4 days ago)

Although tbf all those achievements were by the Soviet space program, while Roscosmos has been… well, less successful especially recently thanks to all the money going to murdering Ukrainians

[-] ZombiFrancis@sh.itjust.works 6 points 5 days ago

We put a lot of meaning on 'Boots on the ground.'

[-] jaennaet@sopuli.xyz 8 points 5 days ago

"First to invade the moon"

load more comments (2 replies)
[-] HugeNerd@lemmy.ca 7 points 5 days ago

Oh boy. That was funny.

[-] LodeMike@lemmy.today 62 points 5 days ago
[-] PugJesus@piefed.social 168 points 5 days ago

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!

[-] Scrollone@feddit.it 106 points 5 days ago* (last edited 5 days ago)

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

[-] wieson@feddit.org 25 points 5 days ago

Thank you, finally something sensible

[-] tetris11@feddit.uk 15 points 5 days ago

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

[-] Gladaed@feddit.org 2 points 4 days ago

To many significant digits. It's 300kg

load more comments (6 replies)
[-] slampisko@lemmy.world 42 points 5 days ago

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

load more comments (1 replies)
[-] LodeMike@lemmy.today 33 points 5 days ago

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

load more comments (1 replies)
[-] betanumerus@lemmy.ca 52 points 5 days ago* (last edited 5 days ago)

High end bicycle equipment has weight specs in grams.

[-] excral@feddit.org 52 points 5 days ago

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.

[-] MagicShel@lemmy.zip 25 points 5 days ago

Perhaps that's why they are on a bike?

load more comments (1 replies)
[-] HugeNerd@lemmy.ca 14 points 5 days ago

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

[-] somethingsnappy@lemmy.world 11 points 5 days ago

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

[-] SpongyAneurysm@feddit.org 19 points 5 days ago

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.

[-] wolfpack86@lemmy.world 9 points 5 days ago

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.

[-] somethingsnappy@lemmy.world 1 points 2 days ago

So using fewer calories.

load more comments (8 replies)
load more comments (2 replies)
[-] infinitesunrise@slrpnk.net 7 points 4 days ago* (last edited 4 days ago)

In the cycling community we call those guys Freds.

And it's more of a light ribbing than a condemnation, since at least they've got themselves on a bike.

load more comments (2 replies)
load more comments (5 replies)
[-] TankovayaDiviziya@lemmy.world 39 points 5 days ago

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.

[-] neuromorph@lemmy.world 33 points 5 days ago* (last edited 5 days ago)

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.

[-] Town@lemmy.zip 28 points 5 days ago
load more comments (3 replies)
[-] tetris11@feddit.uk 6 points 5 days ago* (last edited 5 days ago)
  • 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
load more comments (8 replies)
[-] yermaw@sh.itjust.works 18 points 5 days ago

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

[-] Bytemeister@lemmy.world 8 points 4 days ago

That's why American Airlines had the "cheat line" livery. Bare hulls saved them enough weight to carry like an extra 2 passengers.

Plus, polished metal on airframes looks sweet IMHO. Real "DC3 golden era of aviation" vibes.

load more comments (1 replies)
[-] ivanafterall@lemmy.world 15 points 5 days ago

Remove all the tanks and shit on the bottom to really save weight and just let the shuttle fly? It's not rocket science.

[-] PugJesus@piefed.social 13 points 5 days ago

Found the Kerbal Space Program player?

[-] ivanafterall@lemmy.world 4 points 4 days ago

If it's just the shuttle, the odds of the wrong part disconnecting when you hit spacebar go way down.

load more comments (2 replies)
[-] Digit@lemmy.wtf 11 points 5 days ago

"Lower the inertial mass." -- Miles O'Brien, Star Trek Deep Space Nine, Season 1, Episode 1.

[-] AffineConnection@lemmy.world 12 points 4 days ago

Lower the inertial mass

—what to say when you want your obese Trekkie friend to take care of their health

load more comments (2 replies)
[-] atomicbocks@sh.itjust.works 26 points 5 days ago

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.

load more comments (2 replies)
[-] saturn57@lemmy.world 19 points 5 days ago

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

[-] Cort@lemmy.world 62 points 5 days ago

The polyurethane spray foam insulation is orange.

[-] Agent641@lemmy.world 9 points 5 days ago

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

load more comments (1 replies)
load more comments (1 replies)
[-] Digit@lemmy.wtf 5 points 5 days ago

Though isn't that decreasing the aerodynamics and increasing the friction?

[-] Atropos@lemmy.world 7 points 4 days ago

Probably, but the slowest part of the trip is in the most dense air. Probably still a net benefit!

load more comments (1 replies)

Yeah but does it have protective properties? Like idk maybe it adds corrosion resistance or sth

load more comments (1 replies)
load more comments
view more: next ›
this post was submitted on 15 Mar 2026
749 points (98.8% liked)

Science Memes

19575 readers
1773 users here now

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.



Rules

  1. Don't throw mud. Behave like an intellectual and remember the human.
  2. Keep it rooted (on topic).
  3. No spam.
  4. Infographics welcome, get schooled.

This is a science community. We use the Dawkins definition of meme.



Research Committee

Other Mander Communities

Science and Research

Biology and Life Sciences

Physical Sciences

Humanities and Social Sciences

Practical and Applied Sciences

Memes

Miscellaneous

founded 3 years ago
MODERATORS