# Archimedes Principle in Low Gravity -- Swimming on the Moon! **URL:** \ **Category:** Factual Questions\ **Created:** [June 17, 2015, 12:48am UTC](https://boards.straightdope.com/t/archimedes-principle-in-low-gravity-swimming-on-the-moon/722712 "2015-06-17T00:48:31Z")\ **Posts on this page:** 2\ **Page:** 2
**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\ **Post date:** [June 19, 2015, 8:47pm UTC](https://boards.straightdope.com/t/archimedes-principle-in-low-gravity-swimming-on-the-moon/722712/21 "2015-06-19T20:47:39Z")
> [@](#): > > Quoth **newme** : > > I don’t understand what you are trying to say here. If there is no fluid drag, someone diving into the water will hit the bottom of the pool every time if they are neutrally buoyant. Yes, but most people aren’t neutrally buoyant. Most people are a little less dense than water, and so have a maximum depth their buoyancy will allow them to reach starting from a jump. I think this also addresses your other questions, since I was assuming a positively-buoyant person for them, too. EDIT: Oh, and I was also assuming a constant-density person. Given that we’ve got lungs full of compressible air, that probably isn’t a good assumption. ---
**Author:** ![Lucas\_Jackson](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/lucas_jackson/32/303_2.png) [@Lucas\_Jackson](https://boards.straightdope.com/u/Lucas_Jackson)\ **Post date:** [June 20, 2015, 1:40pm UTC](https://boards.straightdope.com/t/archimedes-principle-in-low-gravity-swimming-on-the-moon/722712/22 "2015-06-20T13:40:43Z")
> [@Chronos](#): > > Yeah, I was thinking after I posted that that I ought to clarify that that was assuming an ideal fluid, with zero viscosity, surface tension, etc. Wave height, though, wouldn’t be a giveaway, since you can have big or small waves on Earth, too. And frictionless bearings… amirite? 😉 [Previous page](https://boards.straightdope.com/t/archimedes-principle-in-low-gravity-swimming-on-the-moon/722712.md?page=1)