Date: Wed Aug 12 14:29:20 2009 Back to Contents ------------------------------------------------------------------------

Author: Jerry DiMarco

Subject: Re: AAPT2009 Beehler Pictures


Are they interleaved page by page? Seems like a tedious task...


At 8/12/2009 12:05 PM, you wrote:
>Jerry DiMarco wrote:
>> Thanks for posting your photos. What is the apparatus being tugged
>> on by the kids in the tug-of-war demo?
>Two phone books with their pages interleaved is extremely hard to pull
>apart due to the friction between the many pages. I particularly like the
>"clamps" bolted through the spines of the books to allow for easier
>pulling. Generally the phone books rip before they actual slide apart.
>Adam Beehler
>P.S. I did this with a some tiny post-it notes to see how hard they were
>to pull apart. I was successful. Oh yeah! I then tried some slightly
>larger post-it notes and hung weights from it until it ripped.

From Wed Aug 12 14:29:20 2009