Thanks for pointing this out. Wonderful when one has small kids or pets that might get entangled with traditional blades. It may not be more efficient, but it appears to be safer.
Bob at PC
-----Original Message-----
From: phys-l-bounces@carnot.physics.buffalo.edu [mailto:phys-l-bounces@carnot.physics.buffalo.edu] On Behalf Of Anthony Lapinski
Sent: Monday, October 19, 2009 3:17 PM
To: phys-l@carnot.physics.buffalo.edu; tap-l@lists.ncsu.edu
Subject: [Phys-l] bladeless fan
A student sent me these links about a bladeless fan that works via
Bernoulli's principle. Interesting!