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TimeSpaceLightForce

Member Since 05 Dec 2012
Offline Last Active Yesterday, 05:53 PM
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#335527 Laser Lamps

Posted by TimeSpaceLightForce on 31 August 2013 - 02:07 PM

Eight lamps are positioned forming the corners of a 1m cube .
The lamps light up when a beam from laser gun passes through
their  centers (sensors). Using 5 mirrors to deflect the laser path,
how should the mirrors turn all the lamps on with a single shot?

                                   /     /     |      \      \ M
               o

 

o             o           o   L

 

o             o           o
 

               o                   -----------------------------------[[G
 


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#335376 31 Keys

Posted by TimeSpaceLightForce on 24 August 2013 - 09:17 PM

How should the letters:
A B C D E F G
be placed on top of some letters below 
                            
J  F  M  A  M  J  J  A  S  O  N  D

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#334053 Sticks Kinematics

Posted by TimeSpaceLightForce on 10 July 2013 - 05:51 PM

A yard stick was cut on 1 foot mark so that the other 2 footer stick cut can be placed on top of another yardstick to make it roll or pivot
on its ends and middle around (above and below) the yardstick clockwise.
While the 1 footer stick was placed on top of 2 footer stick to make it roll around it counterclockwise without touching the fixed yardstick.
Starting at position shown and same 1 RPM motion, how long will it take for the sticks to knock the ball down?

stx.jpg


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#332568 Kissing Circles

Posted by TimeSpaceLightForce on 26 May 2013 - 08:31 AM

Spoiler for

 


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#332525 The Bank Job

Posted by TimeSpaceLightForce on 24 May 2013 - 10:06 PM

pursuit.jpg
You just held up a bank on the corner of 6th & 7th avenue
and walked to your get away car but upon entering the car,
you've been spotted on the CCTV that alarmed the patrol
cars on the 3  corners of the area that is bounded by high
walls along the perimeter .     If all the vehicles are as
fast as each other and all streets and avenues are of same
span of one-way roads, where is the best intersection for
the get away car to be waiting for you in order to evade
the police cars in  hot pursuit?

 


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#332439 Tessellated Pictures

Posted by TimeSpaceLightForce on 22 May 2013 - 05:39 AM

Spoiler for

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#332358 Paper Scissors Rock

Posted by TimeSpaceLightForce on 19 May 2013 - 08:19 PM

The OP does not say there is a third contest, but I can see how it's implied.
"In a row" is redundant if not.

 No second contest neither,just best of 3 picks because there are six satchels.. sometimes out of the box can be away from the box.

 but i figured a third is the right chance of winning 2 in a row for the lucky  contestant..


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#332223 Paper Scissors Rock

Posted by TimeSpaceLightForce on 16 May 2013 - 02:54 PM

There are satchels where 2 has  paper, 2 has scissors and 2 has rock inside.
2 contestants picks up one satchel each, open them to determine who wins.
Then picks up another to determine who wins. 2 wins is needed to determine  
the winner of the contest. What is the chance of winning 2 in a row ?

 


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#331513 Ice slice

Posted by TimeSpaceLightForce on 02 May 2013 - 11:56 AM

How will you make a slice on a cube ice so that it will melt quickest?


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#331257 S & C & S & C

Posted by TimeSpaceLightForce on 25 April 2013 - 05:25 PM

sc.JPG

If the dark object  can pass thru the light object,

are they circle and square or sphere and cube?

 


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#331251 Particle detectors

Posted by TimeSpaceLightForce on 25 April 2013 - 09:54 AM

...inside a cube the largest square that can fit in is not coplanar with the largest circle that can fit in.


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#330971 Can you break my code?

Posted by TimeSpaceLightForce on 20 April 2013 - 06:46 PM



I really want to see how good of a code i made.. this is the first one i have ever made, and i feel it is pretty decent. but thats just me. The real test is how long it takes someone to break it. All comments on progress are helpfull and appreciated, thanks!

Spoiler for


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#330945 Can you break my code?

Posted by TimeSpaceLightForce on 20 April 2013 - 03:41 AM

Welcome ,have fun!

Spoiler for starter

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#330809 Particle detectors

Posted by TimeSpaceLightForce on 18 April 2013 - 04:42 AM

 



Spoiler for

Spoiler for

 

Spoiler for


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#330668 Particle detectors

Posted by TimeSpaceLightForce on 16 April 2013 - 06:51 AM

A detector with largest flat surface is to be installed
inside a lab cubicle that has 1 sq.m opening and 1m
deep underground to maximize capture of particles.

Is the shape of detector a square or a circle?

 


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