Comment on Brilliant's presentation of certain problems

Some of the problems posed by Brilliant are correctly stated but interpreted incorrectly in terms of the supplied solutions. For example, the problem with the heatloss from penquins assembled in a large huddle, asked if there were any penquins that lost heat at a different rate than others? And I would assume that answer would be given in clear, consise terms. However, the 'solution' seemed to hinge on the fact that in a huddle, every member radiates in a more-or-less 360 deg horizontal plane. Given the picture of the 'huddle' that was presented in the problem statement, it is clear to any 'moderately intelligent' individual that this is not a homogeneous huddle. It has internal members, and 'edge' members. Clearly the ' internal' ones radiate less 'net' heat than the 'edge' members. Why your 'solution' dwelled on the fact that they all radiate indentically, completed missed the correct approach which observes that they are NOT all equivalent. Try to be more careful with your assumptions and you will more respect.

Note by Ted Kooij
2 years, 9 months ago

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Note, this is not the question that I asked:

asked if there were any penquins that lost heat at a different rate than others?

the question that is asked is whether any penguins in the huddle are losing heat more quickly than they would be if they were standing alone.

Josh Silverman Staff - 2 years, 9 months ago

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Point taken. Being trained a chemical engineer I went too deep right away.

Ted Kooij - 2 years, 9 months ago

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No problem. I'm sure you will find some real mistakes :). When you do, you can choose to dispute the problem directly. This puts the dispute into our review process where someone will address it. We don't always see these notes unless we are mentioned, e.g. like this @Ted Kooij

Josh Silverman Staff - 2 years, 9 months ago

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