[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

View post   
File: 47 KB, 943x507, 1288047373428.png [View same] [iqdb] [saucenao] [google]
1951117 No.1951117 [Reply] [Original]

Seems legit to me. Thoughts?

>> No.1951310

>>1951117
fairly sure this would not work. but I cant figure out an exact reason, some smart person please explain the SCIENCE?

>> No.1951330

This doesn't work because the water has a really high pressure at the bottom, takes lots of energy to get that ball in.

>> No.1951337
File: 17 KB, 398x345, z21.jpg [View same] [iqdb] [saucenao] [google]
1951337

the seal would cause a lot of friction, slowing down the balls to a stop. it would have to be qite tightly pressured to stop water escaping, and so would cause so much friction...so thus wouldn't work.

>> No.1951355

>>1951337
You just get dumber and dumber. The tightness of the seal makes no difference. The problem is it has to lift up water to enter the water.

>> No.1951363

>>1951337
WHO IS THIS GIRL

>> No.1951378

>>1951363
zomgoditscriss

>>1951117
To stick the ball in at the bottom it must displace (push up) a coloumn of water above it; and this requires as much energy as is released when the ball floats to the top which can be seen as allowing this coloumn fall back down.

>> No.1951412
File: 13 KB, 330x346, zFKQ.jpg [View same] [iqdb] [saucenao] [google]
1951412

>>1951355
okay, yet again...fuck you! i am correct, to make a seal tight enough to hold in all that water, it ha to be fucking firm and will cause a lot of friction, to push a ball upwards through it will take a lot of energy...
why am i even replying to you?? you stupid ignorant fucktard. STFU and GTFO, twat!

>> No.1951446

>>1951412
Friction is always the wrong answer to a perpetual motion machine problem. Sorry, those are the rules.

>> No.1951451

http://www.lhup.edu/~dsimanek/museum/unwork.htm#friction

>> No.1951489
File: 76 KB, 943x1089, 1288048049358.png [View same] [iqdb] [saucenao] [google]
1951489

Nice try, troll science man!

>> No.1953401

>>1951489
the pressure differential is only a finite force from the pressure (pgh) times the cross sectional area of the sphere. That's easily overcome from the multiple bouyancy forces from the air filled spheres

>> No.1953415

you now realize gravity is a push force

>> No.1953445

>>1953415
yeah gravity keeps pushing me out into space. it's pretty irritating

>> No.1953488

>>1951489
let's put numbers for a reality check people.

Pressure under 1 foot of water = 0.43 psi
Force on sphere at seal of 1 sq inch cross-section = 0.43 lbs
Bouyancy force of a single sphere upwards = 0.15 lbs

You ONLY need 3 spheres to overcome the seal. easily done!