How to Cook the Perfect Hard-Boiled Egg

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This Flash application from the University of Oslo figures out the optimal time to cook a hard-boiled egg based on four factors: the egg's circumference, the level of doneness you want the egg to be, the start temperature of the egg, and the elevation you're cooking at. Now every egg you cook will be perfect—as long as you measure its circumference and temperature, and know how many meters above sea level you are. (And to think all this time I was just boiling my eggs for seven minutes, give or take a few seconds.) The website is in Norwegian, but for a scientific explanation of cooking hard-boiled eggs in English go to khymos.org. [via Lifehacker]

Related: Nick Kindelsperger on How To Cook Perfect Hard-Boiled Eggs

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