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[-] ChaoticNeutralCzech@feddit.de 84 points 1 year ago* (last edited 1 year ago)

Lb-Ft

FFS, just adopt the metric system already. And "lb" is not a force unit. Also don't capitalize unit abbreviations unless named after scientists.

[-] _stranger_@lemmy.world 24 points 1 year ago

"pound foot" is the most intuitive name for a unit of force imaginable!

How much force? One pound of the foot. Easy!

[-] mdurell@lemmy.world 6 points 1 year ago

Red Foreman agrees... "one pound of my foot in your ass"

[-] ReadyUser31@lemmy.world 3 points 1 year ago

It's one pound per foot you moron!

/s

Not just any old foot, a square one

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[-] Bytemeister@lemmy.world 2 points 1 year ago

It's a derived unit of torque. Pound is already a measure of force.

[-] _stranger_@lemmy.world 2 points 1 year ago

Of this, you and I, are quite aware.

The Joke, however, is in the air.

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[-] nooneescapesthelaw@lemmy.ml 17 points 1 year ago

Actually pounds are a unit of force

Pounds~newtons

Slugs~ kilograms

[-] ChaoticNeutralCzech@feddit.de 9 points 1 year ago* (last edited 1 year ago)

Pounds are a unit of money. lbf (poundforce) is a misnomer, it’s actually the pressure required to stamp the King’s portrait into a £1 coin. Slightly changes with each monarch – or by a lot whenever they switch to cheaper materials because of devaluation. The frequent redefining of poundforce is now a major consequence of Brexit. /s

[-] echodot@feddit.uk 4 points 1 year ago

Fairly sure there isn't any money with the king's face on yet. So we're still on the Elizabeth standard for now.

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[-] agoseris@lemm.ee 11 points 1 year ago* (last edited 1 year ago)

It's confusing, since "pound" is used for both force and mass.

1 lbm is roughly 0.45 kg

1 lbf is the force required to accelerate a 1 slug (32.2 lbm) mass 1 ft/s^2.

[-] Guntrigger@feddit.ch 13 points 1 year ago* (last edited 1 year ago)

I know slugs are just snails without shells, but they don't need to go faster

[-] Spedwell@lemmy.world 10 points 1 year ago

I don't know what the imperial system standards committee was up to, but I've never met a slug that was 32.2 lbm

You wouldn't know her, she goes to a different school.

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[-] Gsus4@feddit.nl 2 points 1 year ago* (last edited 1 year ago)

Mercifully, g=9.8 everywhere on Earth's surface, so we use weight interchangeably with mass, but yes, we should weigh ourselves in Newton: "I need to lose 10kg, so I can reach my ideal weigh of 700N" :P

[-] uis@lemmy.world 7 points 1 year ago

Mercifully, g=9.8 everywhere on Earth's

Big nope. It depends not only on height, but also on density of stuff under ground.

[-] chiliedogg@lemmy.world 5 points 1 year ago

I'd say it's more of a "small yes" than a "big nope."

While gravity does vary, it goes from about 9.76 to about 9.83.

All of which does, in fact, round to 9.8

[-] uis@lemmy.world 2 points 1 year ago

On ISS it's 8.722, but it's constantly falling.

[-] ChaoticNeutralCzech@feddit.de 2 points 1 year ago* (last edited 1 year ago)

Everything experiences different gravity (and “apparent gravity”) in space. We should pass a treaty of using metric only there, if only to avoid losing more spacecraft.

[-] Wogi@lemmy.world 5 points 1 year ago

The pedantry in this post is so dense you would need a torch to cut through it

[-] Gsus4@feddit.nl 3 points 1 year ago* (last edited 1 year ago)

What's the variation? Does it ever get to 9.9 or 9.7? It's a negligible "nope" for people weighing themselves :D

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this post was submitted on 25 Sep 2023
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