▲ 145 ▼ marble balls floating on water are nice sculptures. why doesn't the water squirt out like when you pinch a garden hose ? (lemmy.world) submitted 2 weeks ago by Karmanopoly@lemmy.world to c/nostupidquestions@lemmy.world 59 comments fedilink hide all child comments
[–] Zwuzelmaus@feddit.org 11 points 2 weeks ago (5 children) Why should it squirt out? Who would want that? Think about basics: Pressure is force divided by area. The weight of the ball (downward force) equals the upward force from the water pressure, then it can float. You want the water pressure to be about 1 bar (equal the air), so it does not squirt out. From that you get: weight of the ball divided by the partial area of the ball that is in the water equals 1 bar. That's how big and how heavy your ball must be, then it works. permalink fedilink source hideshow 8 child comments replies: [+] Karmanopoly@lemmy.world [S] -25 points 2 weeks ago (4 children) It's not floating though It's more like hydroplaning At some point the weight of the ball would close off the water and force it out like squirting permalink fedilink source parent hideshow 6 child comments replies: [–] prole@lemmy.blahaj.zone 3 points 2 weeks ago (1 child) It's more like hydroplaning You mean the thing that, in this very thread, you were arguing does not exist? What are you even doing? Seriously. permalink fedilink source parent hideshow 2 child comments replies: [–] Karmanopoly@lemmy.world [S] -2 points 2 weeks ago Hydroplaning squirts out a lot of water permalink fedilink source parent load more comments (2 replies) load more comments (2 replies)
[+] Karmanopoly@lemmy.world [S] -25 points 2 weeks ago (4 children) It's not floating though It's more like hydroplaning At some point the weight of the ball would close off the water and force it out like squirting permalink fedilink source parent hideshow 6 child comments replies: [–] prole@lemmy.blahaj.zone 3 points 2 weeks ago (1 child) It's more like hydroplaning You mean the thing that, in this very thread, you were arguing does not exist? What are you even doing? Seriously. permalink fedilink source parent hideshow 2 child comments replies: [–] Karmanopoly@lemmy.world [S] -2 points 2 weeks ago Hydroplaning squirts out a lot of water permalink fedilink source parent load more comments (2 replies)
[–] prole@lemmy.blahaj.zone 3 points 2 weeks ago (1 child) It's more like hydroplaning You mean the thing that, in this very thread, you were arguing does not exist? What are you even doing? Seriously. permalink fedilink source parent hideshow 2 child comments replies: [–] Karmanopoly@lemmy.world [S] -2 points 2 weeks ago Hydroplaning squirts out a lot of water permalink fedilink source parent
[–] Karmanopoly@lemmy.world [S] -2 points 2 weeks ago Hydroplaning squirts out a lot of water permalink fedilink source parent