Quote:
Originally posted by Red@May 18 2004, 05:09 PM
We know that the human body is full of energy, both chemical and electrical.
The first law of thermodynamics is that energy can neither be created or destroyed.
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Hmmm not exactly
http://www.cchem.berkeley.edu/~chem130a/sa...e/firstlaw.html
Quote:
However, the total energy of the system plus the surroundings is constant. That's the First Law of Thermodynamics. The First Law is also stated as energy is conserved.
How do we know this? This is an empirical law, which means that we know that energy is conserved because of many repeated experiments by scientists. It's been observed that you can't get any more energy out of a system than you put into it . James Prescott Joule did a famous experiment which demonstrated the conservation of energy and showed that heat and work were both of the same nature: energy. His system of interest was water in a thermally insulated container. In this container was also a paddle which was connected to the outside world (surroundings) and connected to weights on a string. Joule measured the work done by the paddle wheel and he also measured the heat created by the wheel turning in the water. Significantly, Joule found that the amount of energy done as work was converted exactly to heat. Energy was changed from one form to another (work to heat); however, no net change of energy in the system plus the surroundings occured. Energy is conserved.
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I'd love to see verifiable proof
Sorry I lost my faith (if I had any) a long time ago
Even thing is unreliable second and third hand stories