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Counter-Intuitive Science

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Author Topic:   Counter-Intuitive Science
arachnophilia
Member (Idle past 1371 days)
Posts: 9069
From: god's waiting room
Joined: 05-21-2004

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Message 5 of 182 (599678)
01-09-2011 6:47 PM 		Reply to: Message 1 by Dr Adequate
01-08-2011 11:29 AM

Dr Adequate writes:
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What are your favorite examples?
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that it is entirely possible to make a vehicle that travels directly downwind, powered only by the wind, and goes faster than the wind.
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אָרַח
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 Message 6 by RAZD, posted 01-09-2011 7:38 PM arachnophilia has not replied
 Message 178 by Kaichos Man, posted 03-05-2011 6:02 AM arachnophilia has replied
  
arachnophilia
Member (Idle past 1371 days)
Posts: 9069
From: god's waiting room
Joined: 05-21-2004

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Message 29 of 182 (599799)
01-10-2011 5:09 PM 		Reply to: Message 22 by Granny Magda
01-10-2011 12:37 PM

Re: Floating Cannonball
splashing mercury. now there's a bright idea.
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arachnophilia
Member (Idle past 1371 days)
Posts: 9069
From: god's waiting room
Joined: 05-21-2004

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Message 163 of 182 (601481)
01-20-2011 8:34 PM 		Reply to: Message 161 by RAZD
01-20-2011 7:48 PM

Re: More counterintuitive Maths
RAZD writes:
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Isn't this similar to your last version of the Monty game? Once you have a card on the table (with any one card being chosen 1/3rd of the time), there are only two cards that can have the face that is up (ie it cannot be the green/green card), and one of them the same on the bottom and the other is not: 50:50?
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that's what i thought, but i also thought that was too obvious, so i was gonna wait and see what people said. how are people getting 2/3rds?
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edit: oh, wait. got it. yes, 2/3rds, same as monty hall.
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Edited by arachnophilia, : No reason given.
​
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arachnophilia
Member (Idle past 1371 days)
Posts: 9069
From: god's waiting room
Joined: 05-21-2004

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Message 179 of 182 (607675)
03-05-2011 9:51 PM 		Reply to: Message 178 by Kaichos Man
03-05-2011 6:02 AM

LMGTFY - Let Me Google That For You
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basically, you make a cart such that the wheel powers a propeller (that rotates against the wind). the wind will push the cart because the prop acts as a dead sail at first, but as the wheels power the prop, the the added force of the wind and the prop cause the cart to move faster than the wind.
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Edited by arachnophilia, : spalling
​
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