Physics news

Henry J · Post by **Henry J** » Sat Oct 21, 2006 7:51 pm

They know what causes that now.

Henry

Xjmt · Post by **Xjmt** » Sun Oct 22, 2006 7:43 am

A stroke of good luck?

lswot · Post by **lswot** » Sun Oct 22, 2006 1:53 pm

Henry J · Post by **Henry J** » Fri Oct 27, 2006 11:11 am

Big Bang Theory saved

An apparent discrepancy in the Big Bang theory of the universe's evolution has been reconciled by astrophysicists examining the movement of gases in stars.

(And I didn't even know it wuz in trouble! )

---

Henry

lswot · Post by **lswot** » Sun Oct 29, 2006 1:59 pm

Henry J wrote:Big Bang Theory saved
An apparent discrepancy in the Big Bang theory of the universe's evolution has been reconciled by astrophysicists examining the movement of gases in stars.

Henry

You mean they aren't infallible?

Xjmt · Post by **Xjmt** » Sun Oct 29, 2006 3:28 pm

examining the movement of gases in stars

Well maybe if Angoline and Brad watched what they eat they wouldn't have that problem.

Xjmt · Post by **Xjmt** » Mon Nov 13, 2006 4:53 pm

60 SECOND E=mc2

Einstein’s famous equation says that mass (m) is equivalent to energy (E). The recognition that the two quantities are related was Einstein’s stroke of genius. The speed of light squared (c2) comes into the equation to tell us exactly how much energy a given amount of mass represents.
In a world of subatomic processes, the mass of particles can change into energy in the form of light, heat or motion. Likewise, energy can also transform into mass. Particle accelerators exploit this idea by smashing together fast-moving particles. The high energy of these collisions transforms into new particles, which can have much greater mass than the ones that originally collided.
Converting mass into energy is the goal of scientists pursuing nuclear fusion. Fusing protons and neutrons together results in a nucleus with a total mass that is less than the mass of its constituents. The missing mass appears as energy, which can be harnessed-in principle-for useful power: E=mc2.
Mass-energy convertibility has far-reaching consequences. Your car’s engine is powered by fossil fuel, which comes from prehistoric plants. The plants got their energy from sunlight, which was produced by nuclear fusion in the sun. So your car, and virtually all other activity on Earth, is ultimately powered by E=mc2.

Peter Meyers, Princeton University in “symmetry” A joint Fermilab/SLAC publication.

Sorry! But I don’t have a little "2" on this computer

Henry J · Post by **Henry J** » Mon Nov 13, 2006 8:08 pm

Let's see if this works:

E = mc²

That worked, so it should be possible to simply copy/paste that superscript 2 into new posts.

Xjmt · Post by **Xjmt** » Tue Nov 14, 2006 6:47 am

The next time I talk this stuff I'll have to use it.

E = mc²

Website · Post by **brian** » Tue Nov 14, 2006 8:22 am

It comes up so often around here.

E = mc²

See, it just did again!

Xjmt · Post by **Xjmt** » Tue Nov 14, 2006 9:59 am

E = mc² E = mc² E = mc² E = mc² E = mc² E = mc² E = mc²

Quick!! Somebody call an exterminator!! "Hello, Arnold....?"

Henry J · Post by **Henry J** » Tue Nov 14, 2006 10:39 am

Ahnold can't come to the phone right now, he's busy governating...

Xjmt · Post by **Xjmt** » Wed Nov 15, 2006 6:39 am

Does his wife know he's governating at the office??

Henry J · Post by **Henry J** » Wed Nov 15, 2006 7:50 am

Hush up - she might hear you!

Xjmt · Post by **Xjmt** » Wed Nov 15, 2006 12:54 pm

That's OK. She'll understand. She's a Kennedy.

The Show Place

Physics news

60 Second E=mc2