India is preparing to land on moon for the first time in the country's history • Hacker News Board

Re: India is preparing to land on moon for the first time in the country's history

#51

Post by mrb » Sun, Dec 03, 2017, 2:05 PM UTC

Roodgorf wrote: post #45

baddox wrote: post #39

Earlier quoted context omitted.

The low gravity is probably what I would have the most fun with. I can imagine all sorts of activities could get a lot more fun. I could learn to do a standing backflip, or even manage to finally break 400lb on my deadlift. :)

Wouldn't trying to deadlift more than 400 pounds be the same amount of effort on the moon? Granted, it would have to be that much more massive, so it would certainly LOOK more impressive.

No. 400 lb is 1779 newtons on Earth, but 294 newtons on the Moon. Newtons are really what defines the effort needed to lift an object.

Re: India is preparing to land on moon for the first time in the country's history

#52

Post by fellellor » Sun, Dec 03, 2017, 3:14 PM UTC

known wrote: post #38

http://www.dailymail.co.uk/femail/article-5137359/Boy-18-inv... is more interesting from India today

That's pretty cool, but you should see a shrink. Something's wrong with you.

Re: India is preparing to land on moon for the first time in the country's history

#53

Post by Roodgorf » Mon, Dec 04, 2017, 1:47 PM UTC

mrb wrote: post #51

Roodgorf wrote: post #45

Earlier quoted context omitted.

Wouldn't trying to deadlift more than 400 pounds be the same amount of effort on the moon? Granted, it would have to be that much more massive, so it would certainly LOOK more impressive.

No. 400 lb is 1779 newtons on Earth, but 294 newtons on the Moon. Newtons are really what defines the effort needed to lift an object.

That's what I was commenting on though; I very well may be wrong, but my understanding was that the weight of things like barbells is measured in pounds-force, not pounds-mass, so if you were going to follow that on the moon you'd need a much more massive set of weights.

Though, I suppose if you're saying "I'm taking these exact same weights to the moon to lift" then you're right. I was being unnecessarily pedantic.

Re: India is preparing to land on moon for the first time in the country's history

#54

Post by mrb » Mon, Dec 04, 2017, 6:36 PM UTC

Roodgorf wrote: post #53

mrb wrote: post #51

Earlier quoted context omitted.

No. 400 lb is 1779 newtons on Earth, but 294 newtons on the Moon. Newtons are really what defines the effort needed to lift an object.

That's what I was commenting on though; I very well may be wrong, but my understanding was that the weight of things like barbells is measured in pounds-force, not pounds-mass, so if you were going to follow that on the moon you'd need a much more massive set of weights. Though, I suppose if you're saying "I'm taking these exact same weights to the moon to lift" then you're right. I was being unnecessarily pedantic.

I see :)