.

[ndee]

Originally posted by: Kiyup

Originally posted by: Booster

Originally posted by: ndee

Originally posted by: Kiyup
Guys, stop picking on him. He's swiss.

Isn't it.... Swiss stupid?

I think ndee's threads are OK, BTW, and very funny, unlike the majority of regular anal retentive threads which I don't even want to click. Way to go, ndee!

I see your point, kinda like seeing the chimps jerkoff at the zoo.

You jerk off to chimps at the zoo?

 

[Booster]

Originally posted by: Kiyup

Originally posted by: Booster

Originally posted by: ndee

Originally posted by: Kiyup
Guys, stop picking on him. He's swiss.

Isn't it.... Swiss stupid?

I think ndee's threads are OK, BTW, and very funny, unlike the majority of regular anal retentive threads which I don't even want to click. Way to go, ndee!

I see your point, kinda like seeing the chimps jerkoff at the zoo.

Hmm, kind of rude I think. Anyways, where's the democratic attitude, man? You can't post anything nowadays without digging scientific data and linking to stuff? Just take it easy.

 

[Apathetic]

Originally posted by: ndee

Originally posted by: Tyler
WTF is a Perpetum Mobile?

The thing that will never exist. You put energy into it, and it gives you more energy back.

I think your refering to a perpetual motion machine.

Dave

 

[Ophir]

Originally posted by: silverpigDamn d00d, you don't have to go off on him like that. He isn't very well versed in physics so he asked a question. You aren't very well versed in latin, so you asked a question. I'm sure you wouldn't like it if someone came in this thread and called you an idiot because you didn't recognize the latin in his post.

Alright, I may have been a little harsh, but I read this statement:

in the middle of the Sahara, I'm sure as hell that you will ALWAYS have some Sun there.

Come on, no physics knowledge or not, this is an idiotic comment - unless he's 4 and doesn't realize that there is night in the Sahara Desert. I only flamed that comment (rightly so IMO), the rest I see as informing him as to why he was wrong.

Also:

Conversion of energy from one source to another has NOTHING to do w/ perpetual motion.

Sure it does. Let's set up a solar cell, a light bulb, a boiler, a turbine, and a fan such that the light shines on the cell and produces electricity which in turn powers the light. The light also shines on the boiler and produces steam, turning a turbine which turns the fan. Now let's wave our hands and convert this into an unending, lossless process. This is an example of a perpetual motion machine which converts light energy to electricity and back again, as well as turning light energy to thermal energy to mechanical energy.

I am going to refrain from the childish name calling and flaming however.

I phrased that wrong, but the idea remains the same. AFAIK, perpetual motion refers to mechanical efficiency (as in a turbine being lossless) NOT thermodynamic efficiency (as in converting all sunlight/heat/etc. energy into electrical energy). Since a solar cell has no mechanical parts, it cannot be in perpetual motion. I may be wrong, though, my second law knowledge is poor.

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edit: 'cuz it looked like ass.

 

[Looney]

A moron has to be told a moron. There are already way too many clueless people on this planet that think they know better, which infact they're just idiots.

 

You can pretty much only have perpetual motion (or so I'm assuming) if friction is TOTALLY AND COMPLETELY eliminated in your machine. That's impossible to do right now.

 

[everman]

The idea of a perpetual motion machine violates the 2nd law of thermodynamics doesn't it? (Law of Entropy). So I do not believe one can exist at all since it would be producing energy without any kind of input, and your are taking that energy output and putting it somewhere else.

But anyway, solar cells work well if you have constant sun, such as in orbit but currently are very inneficiant (they don't nearly give you as much energy as is going into it).

 

[Hayabusa Rider]

I believe that 35% conversion is about right. That is not too bad. I am sure you could find out how inefficient fossil fuel plants are. BTW, 30 years is a great exaggeration, but with ANY powersource you ought to consider the "break even" point where the power you get out of a system is equal to the power required to construct it.

Anyway, the problem with solar cells is that they have been expensive to build. Like anything, they have a limited life. They weather, are degraded by UV, etc. They just plain wear out. If you calculate the cost per KW of electricity produced, you find it quite high compared to conventional sources. That is why they are not widely used. Now I have heard of recent developments that appear to bring down the cost by a lot. If true, the power companies will buy out the technology and bury it of course. Think not? Look at the streetlights in your town. Ever wonder why there are so many? Because the power companies want them, and municipalities do not care to fight for lower power consuming illumination. I personally do not need to drive on streets so bright, that I cannot tell if my lights are on.

 

[ndee]

Originally posted by: Ophir

Originally posted by: silverpigDamn d00d, you don't have to go off on him like that. He isn't very well versed in physics so he asked a question. You aren't very well versed in latin, so you asked a question. I'm sure you wouldn't like it if someone came in this thread and called you an idiot because you didn't recognize the latin in his post.

Alright, I may have been a little harsh, but I read this statement:

in the middle of the Sahara, I'm sure as hell that you will ALWAYS have some Sun there.

Come on, no physics knowledge or not, this is an idiotic comment - unless he's 4 and doesn't realize that there is night in the Sahara Desert. I only flamed that comment (rightly so IMO), the rest I see as informing him as to why he was wrong.

Also:

Conversion of energy from one source to another has NOTHING to do w/ perpetual motion.

Sure it does. Let's set up a solar cell, a light bulb, a boiler, a turbine, and a fan such that the light shines on the cell and produces electricity which in turn powers the light. The light also shines on the boiler and produces steam, turning a turbine which turns the fan. Now let's wave our hands and convert this into an unending, lossless process. This is an example of a perpetual motion machine which converts light energy to electricity and back again, as well as turning light energy to thermal energy to mechanical energy.

I am going to refrain from the childish name calling and flaming however.

I phrased that wrong, but the idea remains the same. AFAIK, perpetual motion refers to mechanical efficiency (as in a turbine being lossless) NOT thermodynamic efficiency (as in converting all sunlight/heat/etc. energy into electrical energy). Since a solar cell has no mechanical parts, it cannot be in perpetual motion. I may be wrong, though, my second law knowledge is poor.

--------
edit: 'cuz it looked like ass.

aaaaaaaaaaaa no sh!t, there's the night in the Sahara?

 

[ndee]

Originally posted by: Moralpanic
A moron has to be told a moron. There are already way too many clueless people on this planet that think they know better, which infact they're just idiots.

Oh, captain smartass is also on board.



And BTW ladies, I was never like: I'm a friggin genius, I am TEH smart! I re-invented the wheel! For the guys who flamed me: Did you get a hard-on when you could show your UBER-smartness with your posts?

 

[TNTrulez]

Conservation of Energy and Momentum pwn j00.

 

[TNTrulez]

That would be E^2 = (pc)^2 + m^2c^4

 

[NuclearFusi0n]

THIS THREAD IS COMEDY++!

 

[Skyclad1uhm1]

Originally posted by: Booster
Energy sucks. Who needs that anyway.

Also, WTF is perpetum(SIC) mobile?'

It's the 'eternal engine' in Latin, AFAIK.

A lot of people here can't even speak proper English, let alone that they know a secondary language

It's perpetuum mobile btw.

 

[ndee]

Originally posted by: Skyclad1uhm1

Originally posted by: Booster
Energy sucks. Who needs that anyway.

Also, WTF is perpetum(SIC) mobile?'

It's the 'eternal engine' in Latin, AFAIK.

A lot of people here can't even speak proper English, let alone that they know a secondary language

It's perpetuum mobile btw.

I just missed the "u" I saw it in google but I thought nah, I wanna be teh dumbz0rz. Alles klootsacken hier

 

[Vadatajs]

Originally posted by: ndee
Well not 100% like the definition, but if you put some big a$$ Solar-cells in the middle of the Sahara, I'm sure as hell that you will ALWAYS have some Sun there.

what about at night??

 

[ndee]

Originally posted by: Vadatajs

Originally posted by: ndee
Well not 100% like the definition, but if you put some big a$$ Solar-cells in the middle of the Sahara, I'm sure as hell that you will ALWAYS have some Sun there.

what about at night??

There's also a night in the Sahara?