Need good ZPE explination

[Laros]

I'm doing a presentation of Zero Point Energy for an advanced grade 12-level physics class. I was thinking of showing a clip from Stargate as an intro to the presentation. Anyone know of an episode with a good explination of ZPE?

[aAnubiSs]

If you're doing a presentation about REAL ZPE then stay away from stargate

[freyr's mother]

If you're doing a presentation about REAL ZPE then stay away from stargate

ROFL

[Laros]

regardless of how factual it is, it's always good to bring fun stuff into a very complicated topic.

[AndyStargateUK]

I'm doing a presentation of Zero Point Energy for an advanced grade 12-level physics class. I was thinking of showing a clip from Stargate as an intro to the presentation. Anyone know of an episode with a good explination of ZPE?

http://www.gateworld.net/atlantis/s2/206.shtml Probably the episode that goes into some detail.

It's a universe (not ours) trapped in a bottle in sub space in basic terms.
Heres something from the omnipedia:
A Z.P.M. derives its enormous power from vacuum energy, derived from a self-contained region of subspace time, and has a potential life of many millions of years.

Good luck with your work.

[aAnubiSs]

If you want an F go ahead and use the word subspace

If you have to take something, take the part from Rising, part 1 where McKay explains the ZPM for O'Neill and Jackson.

[Jumper One]

If you want an F go ahead and use the word subspace

That's just like my MacGyver project for Chemistry! lol

anyway, i would probably use one of the clips from Trinity

[Laros]

Thanks. I'll take another look at those eps. In case you're wondering, the class isn't actually for marks. We're all a few dozen IQ points higher than the rest of the school in that class, so I'm sure my fellow class mates will appreciate the attempt to spruce up the pages upon pages of formulas and such.

[Pharaoh Atem]

http://en.wikipedia.org/wiki/Zero-point_energy

maybe worth a read and might be helpful

[lethalfang]

Simply put, Zero Point Energy is the lowest possible energy level for any system.
Since energy is an additive quantity, and only difference in energy levels tells us how a system will behave, the absolute value of zero point energy is irrelevent. The absolute value of the zero point energy in any system does not change the property of any system. Only the difference in energy level matters.

[Lord You]

The fact that there is ZPE is important. The ZPE of electrons in an atom means that they don't fall into the nucleus. That means that atoms are stable! Which is the basis of all of chemistry and early quantum mechanics (why do you think it was named "quantum" in the first place)...

[lethalfang]

The fact that there is ZPE is important. The ZPE of electrons in an atom means that they don't fall into the nucleus. That means that atoms are stable! Which is the basis of all of chemistry and early quantum mechanics (why do you think it was named "quantum" in the first place)...

Electrons do not fall into the nucleus because there will be a highly repulsive free energy (figuratively speaking, of which the detail is provided by quantum mechanics) when the electrons get too close to the nucleus. That means if electrons had fallen onto the nucleus, the atom will go onto a much higher energy level.

While the physical meaning is not the same, the energy schematics is not unlike the Lennard-Jones potential of a diatomic molecule, i.e. there is a most favable distance. When you get farther, the energy level increases. When you get closer, the energy level increases as well. The lowest energy is to have them stay at where they are.


Now you can shift that entire curve up and down, thus shifting the so-called "zero point energy," but that does not change any physical result, i.e. the most favorable distance will stay the same.

[V-MAN]

Ergh lol

[RobJones]

*scratches head*.... "guh..."

[zpm!!]

http://www.nuenergy.org/alt/zeropoint.htm