Re: [math-fun] "Smart" soccer balls ?
Cf. "Stand By For Mars", Tom Corbett, Space Cadet, and the game of mercury ball.
If the ball were flying through the air, it could set up asymmetric drag and change its trajectory to some degree. Even if it weren't *guided*, it could still move in a random and impossible-to-predict manner which would thoroughly confuse even the best goalies.
Hilarie
Which is available on Project Gutenberg if anybody is interested On Sat, Feb 9, 2019, 12:49 AM Hilarie Orman <ho@alum.mit.edu> wrote:
Cf. "Stand By For Mars", Tom Corbett, Space Cadet, and the game of mercury ball.
If the ball were flying through the air, it could set up asymmetric drag and change its trajectory to some degree. Even if it weren't *guided*, it could still move in a random and impossible-to-predict manner which would thoroughly confuse even the best goalies.
Hilarie
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Why is "Stand By For Mars" in Project Gutenberg? It's from 1952, and would still be under copyright. On Sat, Feb 9, 2019, 2:41 AM Paul Palmer <paul.allan.palmer@gmail.com wrote:
Which is available on Project Gutenberg if anybody is interested
On Sat, Feb 9, 2019, 12:49 AM Hilarie Orman <ho@alum.mit.edu> wrote:
Cf. "Stand By For Mars", Tom Corbett, Space Cadet, and the game of mercury ball.
If the ball were flying through the air, it could set up asymmetric drag and change its trajectory to some degree. Even if it weren't *guided*, it could still move in a random and impossible-to-predict manner which would thoroughly confuse even the best goalies.
Hilarie
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Active copyright renewal remained mandatory for works still in their first 28-year term when the 1976 Copyright Act was passed. So if they didn't renew the copyright in 1952+28=1980, then it lost all protection on 12/31/1980. --Michael On Sat, Feb 9, 2019 at 8:54 AM Allan Wechsler <acwacw@gmail.com> wrote:
Why is "Stand By For Mars" in Project Gutenberg? It's from 1952, and would still be under copyright.
On Sat, Feb 9, 2019, 2:41 AM Paul Palmer <paul.allan.palmer@gmail.com wrote:
Which is available on Project Gutenberg if anybody is interested
On Sat, Feb 9, 2019, 12:49 AM Hilarie Orman <ho@alum.mit.edu> wrote:
Cf. "Stand By For Mars", Tom Corbett, Space Cadet, and the game of mercury ball.
If the ball were flying through the air, it could set up asymmetric drag and change its trajectory to some degree. Even if it weren't *guided*, it could still move in a random and impossible-to-predict manner which would thoroughly confuse even the best goalies.
Hilarie
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_______________________________________________ math-fun mailing list math-fun@mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun
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-- Forewarned is worth an octopus in the bush.
Thanks, Hilarie! I never read that story when I was a kid. I presume that someone actually built such a "mercuryball" at the time to test it out? I also presume that playing with such a ball today would cause DHS instant apoplexy. Someone brought liquid mercury to one of the high schools in L.A. a few years ago, and the officials evacuated the school and brought in people in hazmat suits to remove any possible mercury spills. Irony alert: they apparently didn't realize that a much bigger mercury poisoning threat existed within every fluorescent bulb in the school. The problem with a mercuryball is that it isn't "smart" or self-powered. At 10:48 PM 2/8/2019, Hilarie Orman wrote:
Cf. "Stand By For Mars", Tom Corbett, Space Cadet, and the game of mercury ball.
If the ball were flying through the air, it could set up asymmetric drag and change its trajectory to some degree. Even if it weren't *guided*, it could still move in a random and impossible-to-predict manner which would thoroughly confuse even the best goalies.
Hilarie lman.xmission.com/cgi-bin/mailman/listinfo/math-fun
participants (5)
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Allan Wechsler -
Henry Baker -
Hilarie Orman -
Michael Kleber -
Paul Palmer