09-23-2003, 01:05 PM | #1 (permalink) |
Stop. Think. Question.
Location: Redondo Beach, CA
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How to boil and egg (technical)
Last night I went to Google and typed "how long to boil egg". I found the following page in the first few results - courtesy of the European Journal of Physics
The text: How long does it take to boil an egg? A simple approach to the energy transfer equation P Roura, J Fort and J Saurina GRM, Departament de Física, Universitat de Girona, E17071-Girona, Catalonia, Spain Received 14 July 1999, in final form 16 September 1999 Abstract. The heating of simple geometric objects immersed in an isothermal bath is analysed qualitatively through Fourier's law. The approximate temperature evolution is compared with the exact solution obtained by solving the transport differential equation, the discrepancies being smaller than 20%. Our method succeeds in giving the solution as a function of the Fourier modulus so that the scale laws hold. It is shown that the time needed to homogenize temperature variations that extend over mean distances xm is approximately xm2/, where is the thermal diffusivity. This general relationship also applies to atomic diffusion. Within the approach presented there is no need to write down any differential equation. As an example, the analysis is applied to the process of boiling an egg. Needlesss to say, I didn't bother solving the math problem.
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09-24-2003, 07:37 AM | #4 (permalink) | |
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Location: Redondo Beach, CA
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Hmm, the contents of the egg are liquid and partial solid. At any time does the liquid in the egg reach a boiling point?
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09-26-2003, 09:31 AM | #9 (permalink) |
Tilted Cat Head
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Location: Manhattan, NY
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15 minutes from the time you put the egg and water on the stove until you can cool it under the faucet and eat
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09-26-2003, 10:15 AM | #10 (permalink) | |
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Location: Redondo Beach, CA
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boil, egg, technical |
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