Mass and Energy and Einstein

by Sam Harrelson on November 14, 2009

On Friday, we discussed how energy and matter are two sides of the same coin. They are, essentially, descriptions of the same thing(s).

Here’s a little preview of where we’re headed with this revelation and some of the implications…

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Mass, Energy, and the Sun : Built on Facts: “Since the speed of light c = 299,792,458 m/s, the speed of light squared is about 8.99×1016 m^2/s^2. As such one kilogram of mass is the equivalent of a ridiculously huge amount of energy, as we see in nuclear reactors and weapons. It’s a little less commonly understood that this isn’t just true for nuclear reactions, it’s true for everything. Burn some logs in your fireplace and the total mass of the wood and oxygen will have been just microscopically higher than the final mass of the combustion products. The remainder has gone into the energy released to warm your house. It’s the very same equation on a much smaller scale.”

What a wonderful uni(multi?)verse we inhabit!

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