From: DonRath@aol.com
Date: Tue Nov 05 2002 - 10:54:45 PST
From: DonRath@aol.com Message-ID: <118.1a3f6f50.2af96df5@aol.com> Date: Tue, 5 Nov 2002 13:54:45 EST Subject: RE: pinhole inertia demo
Hi Marc -- if you want a large hoop, try embroidery hoops -- you can get them
in various sizes, from a few inches inches to a foot or more in diameter at
fabric and yardage stores, craft stores, and maybe even at Wal-Mart, K-Mart,
Walgreen's Long's, etc. -- they come as double hoops -- the inside hoop is
usable immediately -- the outside hoop has a metal adjustment screw for
tightening it, but you can cut or saw that section out and then tape the hoop
back together to get 2-for-the-price-of one! -- also, are you aware of the
"trick" in getting it to work (or not work, since that's also an important
part of the demo)? -- if you hit or grab the hoop on the outside of the near
edge as your hand or finger approaches it the hoop, the hoop will bulge
upward and the demo "won't work" -- to get it to work (i.e., get the object
drop straight into the container) you need to hit it or grab it on the inside
of the far edge so the hoop flattens -- this is getting long, so I won't
elaborate -- hope it makes sense! -- good luck! -- Don Rathjen
This archive was generated by hypermail 2.1.3 : Mon Aug 04 2003 - 16:18:08 PDT