Date: Tue Mar 31 14:13:01 2009
Back to Contents
Author: email@example.com Received: from wm-imp-2.unl.edu (wm-imp-2.unl.edu [126.96.36.199]) by uni00ml.unity.ncsu.edu (8.13.7/8.13.8/N.20071210.01) with ESMTP id n2VI1APm003938 for ; Tue, 31 Mar 2009 14:01:11 -0400 Received: from localhost (localhost [127.0.0.1]) by wm-imp-2.unl.edu (8.13.1/8.13.1) with ESMTP id n2VI4gb9011312 for ; Tue, 31 Mar 2009 13:04:42 -0500 Received: from lecturdemo.unl.edu (lecturdemo.unl.edu [188.8.131.52]) by wm-imp-2.unl.edu (Horde MIME library) with HTTP; Tue, 31 Mar 2009 13:04:42 -0500 Message-ID:
Subject: Re: Ruben's tube and propane
Thanks to everyone who responded. We went over the show this morning
and the Ruben's tube worked fine on propane.
I did notice one little odd thing: I had the sound on and we were
finished so I turned the gas off at the stopcock on the tube. The
flames continued to burn which didn't surprise me too much as I
presumed the tube was still pressurized, but I reached over right away
to turn the oscillator off and the instant I did, the flames went out.
Was it just a coincidence? I'll see if I can reproduce it the next
chance I get.
The lecturer is going to show the Ruben's tube, double pendula (the
nice ones I got last year) microwave single slit, laser single slit,
quantum dots (the Cenco apparatus I asked about earlier), a humble
simple pendulum and a couple of other things that I don't remember at
From firstname.lastname@example.org Tue Mar 31 14:13:01 2009