Non Footy Chat Thread II

[I'm a loser baby...]

Yes but my point is that if the water falls far enough after you have converted its potential energy then it will again reach the same potential energy, no? Yet now you have electrical energy as well.

 

[I'm a loser baby...]

Gravity is the moons pull on the earth. Its only relevant when discussing how potential energy works. No gravity, no potential energy.

What? The moon's pull on the earth?

 

[Bazal]

Gravity is the moons pull on the earth. Its only relevant when discussing how potential energy works. No gravity, no potential energy.

Well, gravity is any bodies pull on anything due to its' own mass.

And everything has potential energy regardless. Other forces act on objects. Gravity doesn't convert the potential energy in a cricket ball when I "accidentally" throw it at that shitty fourth grade slogger who keeps miraculously hitting the gaps with his one shot

 

[Bazal]

Yes but my point is that if the water falls far enough after you have converted its potential energy then it will again reach the same potential energy, no? Yet now you have electrical energy as well.

No, because the potential energy is always there. You can't create energy, but you also can't destroy it. It simply becomes something else. In this case, kinetic energy

 

[I'm a loser baby...]

OK, so you have two identical waterfalls. One has a wheel halfway up and a wheel at the bottom. The other one just has a wheel at the bottom. After exiting the wheel halfway up, the water continues to fall in exactly the same direction as previously and again reaches terminal velocity. Don't the two wheels at the bottom still produce the same power? So where did the extra energy come from?

 

[I'm a loser baby...]

 

[Bazal]

OK, so you have two identical waterfalls. One has a wheel halfway up and a wheel at the bottom. The other one just has a wheel at the bottom. After exiting the wheel halfway, up the water continues to fall in exactly the same direction as previously and again reaches terminal velocity. Don't the two wheels at the bottom still produce the same power? So where did the extra energy come from?

That hypothetical presupposes that there is enough distance to reach terminal velocity. Once terminal velocity is reached the water doesn't accelerate, so really you're just confusing the issue by adding it in. Terminal velocity is a function of gravity. If you had different distances you would notice the difference in kinetic energy between the two, but realistically it's not relevant to the energy question.

Essentially what is happening is the water has kinetic energy. The wheel has potential energy. By turning the wheel, the water and the wheel swap kinetic and potential energy. But because there is still distance and gravity, the potential energy in the water becomes kinetic energy again.

Nothing is created or taken away, it's there the whole time.

 

[strider]

OK, so you have two identical waterfalls. One has a wheel halfway up and a wheel at the bottom. The other one just has a wheel at the bottom. After exiting the wheel halfway up, the water continues to fall in exactly the same direction as previously and again reaches terminal velocity. Don't the two wheels at the bottom still produce the same power? So where did the extra energy come from?

Jo Beth Taylor?

 

[Bazal]

View attachment 15526

 

[I'm a loser baby...]

That hypothetical presupposes that there is enough distance to reach terminal velocity. Once terminal velocity is reached the water doesn't accelerate, so really you're just confusing the issue by adding it in. Terminal velocity is a function of gravity. If you had different distances you would notice the difference in kinetic energy between the two, but realistically it's not relevant to the energy question.

Essentially what is happening is the water has kinetic energy. The wheel has potential energy. By turning the wheel, the water and the wheel swap kinetic and potential energy. But because there is still distance and gravity, the potential energy in the water becomes kinetic energy again.

Nothing is created or taken away, it's there the whole time.

The wheel is giving the water its own potential energy? I don't see how the wheel is giving the water anything. I see the water giving the wheel energy. It's all very confusing.

 

[I'm a loser baby...]

Jo Beth Taylor?

Yes, it might as well be.

 

[Gary Gutful]

I think you are mistaking where the power comes from, which was my point or it was supposed to be, rather then the use of raw materials (coal) for the making of steel. You cant make steel without coal, as I said we all went to high school

I didn't think that you said this to begin with.

The there is no reason why renewables cant be used to power steel manufacturing, I'm not really sure why that is so difficult to get your head around

Easy to say. Much harder to do. Particularly at the scale we are talking about. I don't see why that is so hard to get your head around.

I am not in favour of people like Adani raping our country for tax payer dollars so they can pollute the GBR,and central Qld. Coal is a very inefficient way of producing power, its a 5 step process and the second stage, burning of the coal to make steam is very inefficient as we see a lot of energy wasted and is discharged out those huge stacks and pollute the environment

How exactly will Adani pollute the GBR?

if we are going to pout money into upgrading infrastructure we should invest in hydro and renewables as hydro is dispatchable power and doesn't pollute

I don't support Adani seeking funding through NAIF, but I doubt it will get up. If Adani want to develop their project I suspect that they will need to fund it themselves.

 

[Twizzle]

Yes but my point is that if the water falls far enough after you have converted its potential energy then it will again reach the same potential energy, no? Yet now you have electrical energy as well.

In theory you be right if the water fall was high enough

one the water finished accelerating the energy could be harvested then allow it to accelerate again to its maximum velocity

 

[I'm a loser baby...]

In theory you be right if the water fall was high enough

one the water finished accelerating the energy could be harvested then allow it to accelerate again to its maximum velocity

Thanks mate, I knew I was right. Baz doesn't know what the f**k he's talking about.

 

[Bazal]

In theory you be right if the water fall was high enough

one the water finished accelerating the energy could be harvested then allow it to accelerate again to its maximum velocity

No he's not right ffs. You're not creating energy, you're converting it back and forth.

 

[Twizzle]

How exactly will Adani pollute the GBR?

there will be environmental damage as a by product of their mining, there will be pollution of the water supply as they need lots of water for coal mining and it finds its way via the river systems to the reef, not to mention the increased shipping required to transport the coal

there is already damage to the reef from past mining, as much as the EPA monitor it, it still gets polluted

 

[Twizzle]

No he's not right ffs. You're not creating energy, you're converting it back and forth.

he asked if the water could have its energy harvested twice and I said if its high enough it could be which it can

 

[I'm a loser baby...]

No he's not right ffs. You're not creating energy, you're converting it back and forth.

Well atm it's 2-1 for free energy... and I'm pretty sure those cats are leaning my way.

 

[Bazal]

he asked if the water could have its energy harvested twice and I said if its high enough it could be which it can

He's literally been asking the whole time where the "extra" energy comes from.

Personally I think he's had too much chemical energy...

 

[Bandwagon]

OK, so you have two identical waterfalls. One has a wheel halfway up and a wheel at the bottom. The other one just has a wheel at the bottom. After exiting the wheel halfway up, the water continues to fall in exactly the same direction as previously and again reaches terminal velocity. Don't the two wheels at the bottom still produce the same power? So where did the extra energy come from?

There is no extra energy.

There is only extra conversion of energy.

No different from having two water falls and two paddle wheels.

Anyways it's all actually solar powered because water won't go uphill by it's self.