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Yakk · 01-12-2005, 01:49 PM

Damn you Phage. I had a nice short essay about E=MC^2 and how it meant that turning an amount of solid into a gas resulted in something that weighed more.

Then I read more of the thread, and you had already done it. Better than my essay too!

Humbug! Ruined my fun. I do have one thing to add:

The amount of mass (and hence weight) added by taking a solid and turning it into a gas is so small I personally doubt it would be measureable.

If you took a cube 10 m on each side, weighing about 1000 tonnes, and turned it into water vapour, the resulting gas would have about 36 miligrams more mass than the original ice cube.

As an aside, the energy in a 1 megaton (H-bomb size) nuclear explosion comes to about 47 grams of mass. The energy in the tsunami in SE asia massed a quarter of a kilogram. The energy in the earthquake that triggered it massed between 10 and 100 kg.

Another fun thing: if you took a cube of water, 30 km on each side, and turned it completely into energy, you would have about enough energy to push the earth into the sun.

01-12-2005, 01:49 PM	#34 (permalink)
Yakk Wehret Den Anfängen! Location: Ontario, Canada	Damn you Phage. I had a nice short essay about E=MC^2 and how it meant that turning an amount of solid into a gas resulted in something that weighed more. Then I read more of the thread, and you had already done it. Better than my essay too! Humbug! Ruined my fun. I do have one thing to add: The amount of mass (and hence weight) added by taking a solid and turning it into a gas is so small I personally doubt it would be measureable. If you took a cube 10 m on each side, weighing about 1000 tonnes, and turned it into water vapour, the resulting gas would have about 36 miligrams more mass than the original ice cube. As an aside, the energy in a 1 megaton (H-bomb size) nuclear explosion comes to about 47 grams of mass. The energy in the tsunami in SE asia massed a quarter of a kilogram. The energy in the earthquake that triggered it massed between 10 and 100 kg. Another fun thing: if you took a cube of water, 30 km on each side, and turned it completely into energy, you would have about enough energy to push the earth into the sun. __________________ Last edited by JHVH : 10-29-4004 BC at 09:00 PM. Reason: Time for a rest.