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From: pmk@prometheus.UUCP (Paul M Koloc)
Newsgroups: sci.physics
Subject: Re: coal mines and candles
Message-ID: <315@prometheus.UUCP>
Date: Tue, 18-Nov-86 15:46:08 EST
Article-I.D.: promethe.315
Posted: Tue Nov 18 15:46:08 1986
Date-Received: Tue, 18-Nov-86 23:43:28 EST
References: <238@sri-arpa.ARPA> <780001@hpdsd.UUCP>
Reply-To: pmk@prometheus.UUCP (Paul M Koloc)
Organization: Prometheus II, Ltd., College Park, MD 20740-0222
Lines: 18

In article <780001@hpdsd.UUCP> campbelr@hpdsd.UUCP (Bob Campbell) writes:
>At the end they demonstrate the miners lamp.  I recall it had something
>other than a candle in it, but all that matters is a flame.  

Candles burn with a higher temperature and there is all the trouble
with the dripping, running wax.  Gas jet flames were better.  The one 
I had, if memory serves, used Calcium Carbide "stones" and by dripping 
water on them they would generate acelylene gas.  This burns with a 
very smokey flame (lots of radiating surface) and a cup of the stuff 
(fuel) would last for quite a spell (as they used to say). 

Naturally, Union Carbide and Carbon Company made the fuel. 

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