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-   -   Things that make you go "Hmmmm…" (https://www.mersenneforum.org/showthread.php?t=1256)

rogue 2007-03-31 20:03

Play the music video from the link at:

[url]http://www.apple.com/quicktime/guide/hd/animusic2dvd.html[/url]

Xyzzy 2007-04-02 03:48

[url]http://www.familycar.com/transmission.htm[/url]

rogue 2007-04-24 02:23

[url]http://blog.scifi.com/tech/archives/2007/04/19/darth_vader_hot.html[/url]

potonono 2007-04-25 01:54

[URL="http://www.msnbc.msn.com/id/18293978"]http://www.msnbc.msn.com/id/18293978[/URL]

Xyzzy 2007-04-25 10:45

[URL]http://www.bschool.nus.edu.sg/staff/bizteocp/case-sp.pdf[/URL]

(The link is a mildly interesting study.)

We have a 4 digit combination lock. We were trying to figure out what combination to use. Of course, we could just pick a number randomly, and in a math simulation, each number would have an equal chance of being picked, but:[LIST][*]If someone were to try to crack it, by starting from 0, then a low number would be unwise. I bet someone could cycle through a few hundred combinations in an hour.[*]According to what we understand from this artice (and we understand very little) people tend to pick certain numbers more than others, due to human nature.[/LIST]Anyways, we are interested in the best approach, factoring in human nature, to pick a 4 digit combination.

(Obviously, only 10,000 permutations is not very secure, but the lock is mechanical.)

kuratkull 2007-04-25 13:54

I have read most of them. Very educating and interesting to read:

[url]http://en.wikipedia.org/wiki/List_of_paradoxes[/url]

[I]On his 30th birthday, a man who wishes to build a [URL="http://en.wikipedia.org/wiki/Time_travel"]time machine[/URL] is visited by a future version of himself. This future self explains to him that he should not worry about designing the time machine, as he has done it in the future. The man receives the schematics from his future self and starts building the time machine. Time passes until he finally completes the time machine. He then uses it to travel back in time to his 30th birthday, where he gives the schematics to his past self, closing the loop.

[/I]The paradox raises the [URL="http://en.wikipedia.org/wiki/Ontology"]ontological[/URL] questions of where, when and by whom the items were created or the information derived. [URL="http://en.wikipedia.org/wiki/Time_loop_logic"]Time loop logic[/URL] operates on similar principles, sending the solutions to computation problems back in time to be checked for correctness without ever being computed "originally."

davieddy 2007-04-26 11:48

[URL]http://www.youtube.com/watch?v=ZqRnaSRyELA[/URL]
Wish I'd seen him live.
(I did see Albert King though:)

cheesehead 2007-05-03 03:59

unusual&physical methods for finding prime numbers
 
[URL]http://www.secamlocal.ex.ac.uk/people/staff/mrwatkin/zeta/unusual.htm[/URL]

Mini-Geek 2007-05-03 12:26

[quote=kuratkull;104544]I have read most of them. Very educating and interesting to read:

[URL]http://en.wikipedia.org/wiki/List_of_paradoxes[/URL]

[I]On his 30th birthday, a man who wishes to build a [URL="http://en.wikipedia.org/wiki/Time_travel"]time machine[/URL] is visited by a future version of himself. This future self explains to him that he should not worry about designing the time machine, as he has done it in the future. The man receives the schematics from his future self and starts building the time machine. Time passes until he finally completes the time machine. He then uses it to travel back in time to his 30th birthday, where he gives the schematics to his past self, closing the loop.

[/I]The paradox raises the [URL="http://en.wikipedia.org/wiki/Ontology"]ontological[/URL] questions of where, when and by whom the items were created or the information derived. [URL="http://en.wikipedia.org/wiki/Time_loop_logic"]Time loop logic[/URL] operates on similar principles, sending the solutions to computation problems back in time to be checked for correctness without ever being computed "originally."[/quote]
Maybe the original man had built it, but it took him so long that he decided to give it to his past self. His past self then, after building the time machine, brought the plans to his younger self, starting the loop. All future (versions? not sure what to call it) of the man brought it back, closing the loop.

Xyzzy 2007-05-03 14:05

[quote=Mini-Geek;105142]Maybe the original man had built it, but it took him so long that he decided to give it to his past self. His past self then, after building the time machine, brought the plans to his younger self, starting the loop. All future (versions? not sure what to call it) of the man brought it back, closing the loop.[/quote]
Or, something like this?

[url]http://www.imdb.com/title/tt0390384/[/url]

(Our favorite movie of all time. Watch it before you read any spoilers.)

E_tron 2007-05-03 20:56

Isn't there legal precedent against copyrighted numbers? I thought intel found that out the hard way with 80486.

[url]http://yro.slashdot.org/article.pl?sid=07/05/01/1935250[/url]


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