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Unread 21-02-2010, 09:15
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Re: Kinda stupid question...

I really like how this thread, while "silly" / "not serious", involves students taking wild ideas and doing calculations to figure out how or why they're unfeasible. Applying what you've learned to challenge even the most sensible conventional wisdom is something great to get used to doing. I wish I did it more often.

You never know when you'll run the math for something you're convinced you'll never work. Just a few days ago, the team was convinced that the tension needed in a piece of string would not be generated by a window motor powered winch, since it was so hard for a human to do. If any of us ran the numbers to challenge rather obvious seeming conventional wisdom, we'd have known a week ago what we know now.

How much weight is needed to make a chassis airtight? Weatherproofing Lexan shields, and making a hinged weatherproof door should get you close enough, assuming the design was within the rules (it isn't).
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