Author Topic: Science people: debunk this (OP image fixed)  (Read 7867 times)

no, you're just a dumbass.

It's funny cause you have no idea how wrong you are.

I think my choice of words is at least somewhat better than Fredulus' throwing insults in capslock

No I meany my choice of words was poor.

okay I'll explain this mathematically.

the force of gravity is about -10m/s2 at sea level

let's say buoyancy adds 30m/s2 to the right side, so that's 20m/s2 of force acting on the right side.
so the left side needs a force of -20m/s2 to keep up with the right side, but it only has -10m/s2 from gravity - thus the right side must "pull" to create that extra -10m/s2 on the left side.

get it?

and to take this further, youd need to expend even more force to get the balls through the seal, plus relatively small amounts to fight friction - this system is flawed in many many ways.
« Last Edit: May 20, 2012, 05:31:15 PM by Fredulus »

okay mr AP prodigy

set up a system like the pic
and measure the force required to pull the string up on the right side

then set up a system with just the right side, none of the left balls
and measure the force required to pull the string up
youd find it to be less.

The forces on the ball in water are B (bouyancy) and W (weight)
B is up and W is down, so net force is B-W

The force on the ball in air is just W going down

to calculate what the net effective force of the system is, put the whole system together and you get (B-W) + W
If (B-W) is greater than W, or vice versa, then the tension of the strings will transfer that to give us a net force of B
This means that the force of gravity due to the ball falling does exist, and is equal to the force of gravity on the one in water.
Both balls cause the system to accelerate, neither resists it or necessarily need to be "pulled along"


You must pull something down if it's being pulled back up.

I think this is a mindforget because of the system's circular nature.

er no you missed the part where I explained how the fluid pressure is where the missing work goes to


I don't think Fredulus understands physics but he's completely right in understanding the effect of all the other balls on one ball.

pls read my post

What if the acceleration of buoyancy is actually only 15 m/s, causing a net acceleration of 5 m/s upward after gravity
Then the falling ball will be the one that picks up the slack

You are correct, but drawing incorrect conclusions from it

well is the density of the water > the torque of the wheels?
/\ not a scientific equation

im sure with the right setup, it can technically work, but being efficient at generating enough power, or the friction and maintenance required for evaporating water, and moving parts.

this isnt something worth building.

What if the acceleration of buoyancy is actually only 15 m/s, causing a net acceleration of 5 m/s upward after gravity
Then the falling ball will be the one that picks up the slack
okay, so then the left side would be the one pulling.....
just admit i was right :)

Are you guys disregarding the water gate? And how it's held down by a ton of water.
Haha, I think everyone missed that.

Haha, I think everyone missed that.
youd need to expend even more force to get the balls through the seal

Are you guys disregarding the water gate? And how it's held down by a ton of water.

Yea we verified that that is where the work goes into, right now we are arguing for some reason on whether the ball on the right is "falling"
By falling I mean that it affects the system by being an accelerating weight downward, and then Kalphiter and Fredulus said that it actually needs to be pulled downward, resisting the motion of the system, and we are just resolving this.

Yea we verified that that is where the work goes into, right now we are arguing for some reason on whether the ball on the right is "falling"
By falling I mean that it affects the system by being an accelerating weight downward, and then Kalphiter and Fredulus said that it actually needs to be pulled downward, resisting the motion of the system, and we are just resolving this.
resolved*
is this how you admit defeat?

resolved*
is this how you admit defeat?

I admit victory because you admitted that the ball on the right does in fact help the system along by being a weight downward (aka falling)

I admit victory because you admitted that the ball on the right does in fact help the system along by being a weight downward (aka falling)


...no? nothing is falling.

it all could work better if you werent using common stuff.

there are better gasses to have in the balls. and better fluids then just water.

and of course there are no details about how this seal even works lol.