Work it out? Or look it up ...
http://news.ycombinator.com/item?id=802304
someone wrote:
REALLY smart school kids would go to
wolfram alpha to get the distance to
the Moon, and let the suckers analyze
echo's from old NASA clips.
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A class of engineering students were given the following question on an exam: How long should a three pound beef roast stay in a 325 degree oven for the center to reach a temperature of 150 degrees?
One student, described as a "Big Project man," didn't come up with an answer but did offer a plan for a series of precise experiments that would yield an accurate answer in six to nine months.
Another student, an advocate of the practical approach, went out and bought a roast, an oven thermometer, and a watch. He wrote his report while munching medium-rare roast beef sandwiches.
A third student used logic. Reasoning that animal tissue is mostly water and therefore should have about the same specific heat and conductivity, he applied heat transfer theory to produce his answer (it proved, incidentally, to be quite close to that of the second student).
The quickest answer, however, came from a student who called his mother on the phone and got the answer from her.
Which of these men promises to be the most effective engineer?
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Which would you rather have on your start-up team? Which would you prefer your child to be? Which ones make the money? Which ones will be happiest in life?
Which would you rather be?