"sal" wrote in message
news | Bored and in danger of getting some work done, I decided to waste time
| reading old posts.
|
| Never saw an answer to this one.
|
| On Sat, 29 May 2004 08:54:39 +0000, Androcles wrote:
|
| I was at a school fundraiser last summer where I was a chance to win a
| small prize by selecting the red ball from 6 other non-red balls
contained
| in a box hiding the balls. I watched others chose at random for a while,
| until I had a chance to see the red ball. It was made of polyethylene,
| very light with holes in it, the size of a standard tennis ball; as were
| the others. I then paid my 20p, groped in the box and withdrew the red
| ball 5 times in a row, to the astonishment of the teacher operating the
| stall. I gave the 5 candy pieces I had "won" to the children, athough
the
| cost of each attempt was greater than the value of the prize. The
| fundraiser was for a minibus for disabled children, so I had no
intention
| of making a profit.
| How was I successful?
| Hint: I had worked in the plastics industry many years ago.
|
| I give up. How did you do it?
|
| Greasy feel of red plastic?

Very close, and half a cigar. Softer - one might interpret that as "greasy"
by being smoother ot the touch although it leaves no apparent deposit that
children might be tempted to place in their mouths. I squeezed.


| Material thickness?
Not able to get my fat fingers through the holes.


| Tiny weight difference?
Possibly, but I couldn't discern it.
|
| Extra flashing due to 2-shot molding on the red ball?
Good thought. I didn't discern any difference though.

Androcles


Something else?
|
|
| --
| I can be contacted through http://www.physicsinsights.org
|