Re: pinhole Whosh Bottle - Vacuum Bell Jar - Safety

Date view Thread view Subject view Author view Attachment view

From: NFetter@aol.com
Date: Wed Oct 23 2002 - 22:45:58 PDT 

From: NFetter@aol.com
Message-ID: <109.1ab99b22.2ae8e316@aol.com>
Date: Thu, 24 Oct 2002 01:45:58 EDT
Subject: Re: pinhole Whosh Bottle - Vacuum Bell Jar - Safety

HI Eric
You are right, any demo that goes boom should be behind a protective shield.
My understanding about methanol being used in my whoosh bottle demo is that
the equilibrium vapor pressure of methanol is exactly right when mixed with
air to form an explosive mixture. This effect would be true for most ambient
temperatures. Other alcohols or organic coumpounds do not have the right
vapor presure to make an explosive mixture in air. My demo requires shaking
the methanol vigorously to establish equlibrium before applying the Tesla
coil.
Neil

Date view Thread view Subject view Author view Attachment view

This archive was generated by hypermail 2.1.3 : Mon Aug 04 2003 - 16:18:07 PDT