On Sat, 28 Jun 2008 03:54:43 -0400, "Tom Gardner"
wrote:
snip
Each newer one is simpler and better than the
previous. I wonder what the fifth will look like?
======
How about a linear motor?
http://www.baldor.com/products/linear_motors.asp
http://www.tecnotion.com/?gclid=COGz...FRIuagodzDkJtA
http://www.linmot.com/lm_typo/index.php


Unka' George [George McDuffee]
-------------------------------------------
He that will not apply new remedies,
must expect new evils:
for Time is the greatest innovator: and
if Time, of course, alter things to the worse,
and wisdom and counsel shall not alter them to the better,
what shall be the end?

Francis Bacon (1561-1626), English philosopher, essayist, statesman.
Essays, "Of Innovations" (1597-1625).