Physicists build circuit that generates clean, limitless power from graphene

Researchers harnessed the atomic motion of graphene to generate an electrical current that could lead to a chip to replace batteries.

Graphene Animation

more…

Tau.Neutrino said:

Physicists build circuit that generates clean, limitless power from graphene

Researchers harnessed the atomic motion of graphene to generate an electrical current that could lead to a chip to replace batteries.

Graphene Animation

more…

I haven’t read it, but I’m just a tiny bit sceptical about the clean limitless bit.

The Rev Dodgson said:

Tau.Neutrino said:

Physicists build circuit that generates clean, limitless power from graphene

Researchers harnessed the atomic motion of graphene to generate an electrical current that could lead to a chip to replace batteries.

Graphene Animation

more…

I haven’t read it, but I’m just a tiny bit sceptical about the clean limitless bit.

And it’s limitless POWER as well.

sibeen said:

The Rev Dodgson said:

Tau.Neutrino said:

Physicists build circuit that generates clean, limitless power from graphene

Researchers harnessed the atomic motion of graphene to generate an electrical current that could lead to a chip to replace batteries.

Graphene Animation

more…

I haven’t read it, but I’m just a tiny bit sceptical about the clean limitless bit.

And it’s limitless POWER as well.

Nearly infinite ?

sibeen said:

The Rev Dodgson said:

Tau.Neutrino said:

Physicists build circuit that generates clean, limitless power from graphene

Researchers harnessed the atomic motion of graphene to generate an electrical current that could lead to a chip to replace batteries.

Graphene Animation

more…

I haven’t read it, but I’m just a tiny bit sceptical about the clean limitless bit.

And it’s limitless POWER as well.

In spite of it only actually providing very low power, apparently.

I suppose they mean there is no lower limit to the power provided.

Negative Power ¡¡¡

SCIENCE said:

Negative Power ¡¡¡

Negative power is an interesting concept. Can you get negative power from negative entropy?

> A team of University of Arkansas physicists has successfully developed a circuit capable of capturing graphene’s thermal motion and converting it into an electrical current.

This is exactly the scenario prohibited by the second law of thermodynamics.

The article is behind a paywall, but I can read the figures. What we have here is a version fo Maxwell’s demon in which the demon is replaced by a pair of diodes. As energy from thermal fluctuations passes one way through the demon it goes through one diode, as the energy passes back through the demon it goes through the other diode.

Combine the energy from both diodes and you get positive energy out. Only you don’t. The actual power out comes from a battery providing “load” to the system through a resistor. All you’re measuring is the energy generated by the slow discharge of a battery V through the resistor R.