[math-fun] the volume of an inflated square of rectangular bag.
Hello everybody, I always been puzzled by this fact : I just went to the grocery store to buy plastic garbage bags. They sell it in various sizes in liters but the format is in inches like 26 x 36 inches. That model if I recall has a volume of 121 liters. But actually if I have a square very thin plastic bag and I inflate the bag with air what is the shape of an inflated bag? (square of rectangular). Is this problem has been addresed before? What is the volume? of an inflated 1 meter x 1 meter bag. for sure the surface is 2 square meters. Any idea someone? Simon Plouffe
British parliamentary debate over quadratic equations & why they are important: http://www.parliament.the-stationery-office.co.uk/pa/cm200203/cmhansrd/vo030...
=Henry Baker British parliamentary debate over quadratic equations & why they are important:
http://www.parliament.the-stationery-office.co.uk/pa/cm200203/cmhansrd/vo030... Fascinating, thanks for sharing this! ("Hear hear!"<;-). This rare conjunction of quadratics and politics reminded me of Robert Heinlein's idea in "Expanded Universe": "...a state that required a bare minimum of intelligence and education - e.g. step into the polling booth and find that the computer has generated a new quadratic equation just for you. Solve it, the computer unlocks the voting machine, you vote. But get a wrong answer and the voting machine fails to unlock, a loud bell sounds, a red light goes on over that booth - and you slink out, face red, you having just proved yourself too stupid and/or ignorant to take part in the decisions of the grownups. Better luck next election! No lower age limit in this system - smart 12-yr-old girls vote every election while some of their mothers - and fathers - decline to be humiliated twice." It's unclear though how one could extend this to work with absentee ballots. (For the record let me vigorously disclaim any political advocacy here. I offer this excerpt without promoting a position, merely noting it for your possible amusement and math-fun. Please let's not start a flame fest about the upcoming elections and suchnot!):
participants (3)
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Henry Baker -
Marc LeBrun -
Simon Plouffe