pearl trivia

Slraep said:
You have 80 pearls. One is lighter than all the others. Can you find the odd pearl in just four weightings? Explain why or why not.
okay.

Divide your pearls into 2 groups of 27 pearls and 1 group of 26 pearls. Weight the two groups of 27 pearls (First weighting). If one is lighter than the other, the light pearl is in that group, if not, the light pearl is in the third group (containing 26 pearls).

Then divide the group containing the light pearl in three equal parts (each containing 9 pearls - add a pearl from another group if that group only contained 26 pearls). Weight two parts (Second weighting). If one is lighter than the other, the light pearl is in that group, if not, the pearl is in the third group.

Divide the group containing the light pearl in three equal parts (3 pearls each) and do the same as above. (third weighting).

you end up with three pearls. Weight two pearls (fourth weighting), if they are of equal weight, the third pearl is the light one.
 
effisk said:
Divide your pearls into 2 groups of 27 pearls and 1 group of 26 pearls. Weight the two groups of 27 pearls (First weighting). If one is lighter than the other, the light pearl is in that group, if not, the light pearl is in the third group (containing 26 pearls).........etc.

Mon ami, I have to commend you on your ability to do internet searches. I thought the answer was well hidden. You should have switched the words around a bit, then I would have believed you had actually solved it on your own. Still, you are good.

Slreap
 
Slraep said:
Mon ami, I have to commend you on your ability to do internet searches. I thought the answer was well hidden. You should have switched the words around a bit, then I would have believed you had actually solved it on your own. Still, you are good.

Slreap
hey! I did not look that up on the internet. While writing my prose I was actually wondering if anyone would understand my broken explanation. :rolleyes:

I knew a similar one with nine apples and 2 weightings or something like that so I just had to adapt. ;)
 
effisk said:
hey! I did not look that up on the internet. While writing my prose I was actually wondering if anyone would understand my broken explanation. :rolleyes:

Hmm...if that's the case then you are not only good, but very good. You also did not make the common mistake of using the word "weighing" instaed of "weighting".

Slraep
 
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Slraep said:
Hmm...if that's the case then you are not only good, but very good. You also did not make the common mistake of using the word "weighing" instaed of "weighting".
hehe, that's because English is a second language for me; I do not make common mistakes such as "than" instead of "then", "its" when it should be "it's" and so on.

I make other mistakes: I write "connexion", "independant", "langage"...
 
effisk said:
hey! I did not look that up on the internet. While writing my prose I was actually wondering if anyone would understand my broken explanation. :rolleyes:

I knew a similar one with nine apples and 2 weightings or something like that so I just had to adapt. ;)

Effisk,
very impressive!
 
Ok, i got it, it IS Nikola Tesla! He had a fear of pearl earrings which is hypothetically related to a fear of orb shapes in general. And oh yeah, very nice maths skills there effisk!
 
tacy_cc said:
Ok, i got it, it IS Nikola Tesla! He had a fear of pearl earrings which is hypothetically related to a fear of orb shapes in general. And oh yeah, very nice maths skills there effisk!

Yes, you are right. It is my favorite mad genius, Nikola Tesla!! I'm not sure he had a fear of spheres or orb shapes since he used them on paper and in his inventions. It was more about the pearls themselves, maybe the glow of them. He was afraid of women too. So you can imagine his reaction to any woman wearing pearls. Poor Tesla---that's the price of being a genius---having weird phobias and eccentricities.

Slraep
 
Wow. I didn't know about the pearl phobia. Tesla did some significant things, but it was completely overshadowed by his weirdness. No one trusted or believed him.:eek:
 
GemGeek said:
No one trusted or believed him.:eek:

Tesla also trusted no one. He understood magnetism as no one else did, except maybe Edward Leedskalnin. They both were very secretive about the true nature of magnetic current. That's probably a very good thing in general---knowing how human nature works. Tesla left enough cool inventions to keep people wondering though.

Tesla may have had a certain degree of autism, hence his unexplainable terror of pearls worn by women and his love of white pigeons, amoung lots of other equally weird things.

In his own words....

"I contracted many strange likes, dislikes and habits, some of which I can trace to external impressions while others are unaccountable. I had a violent aversion against earrings of women… I would not touch the hair of other people except, perhaps, at the point of a revolver. I would get a fever looking at a peach and if a piece of camphor was anywhere in the house, it caused me the keenest discomfort."

Most interstingly by far is another thing he said...

"I do not think you can name many great inventions that have been made by married men."

Yup, Tesla is one of my favourites.

Slraep
 
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GemGeek said:
No one trusted or believed him.:eek:

The feeling is mutual. I don't trust ANYONE who doesn't like pearls. Pretty sick ticket.:)
 
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