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Article #334Re: Does multicore solder deteriorate with age?
From: Davo
Date: Sat, 11 Apr 2009 12:57
Date: Sat, 11 Apr 2009 12:57
39 lines
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2766 bytes
Theo wrote: > "Davo" <Dave@gmail.com> wrote in message > news:49dfe231$1_7@news.peopletelecom.com.au... >> Theo wrote: >>> For rosin read resin. >>> Or as multicore called it - "Ersin" >>> >>> >> As a youth I used Bakers Soldering Flux and Aluminium foil to make >> Hydrogen for our lighter than air balloons. Bakers Soldering Flux was 32% >> Hydrochloric Acid. > > Caustic Soda and Aluminium works much better for producing hydrogen, but you > have to watch the temperature as the mixture gets mighty hot and tends to > produce steam too. > > In the days of coal gas, I used to inflate balloons using our gas tap under > the sink. I once let one go with a card attached and I got a reply from over > 100 miles away! > > The gas we get now jest aint light enough! > > > > We made our hydrogen in coke bottles, and sometimes the reaction got so hot the bottle shattered. One day we thought it would be a great idea to put a fuse on the balloon and light it so that when the balloon got up in the sky a bit it explode. The fuse was made from paper that had been saturated in a potassium nitrate solution, (tell the chemist you mum needs it to make sausages). The paper was dried and it becomes our fuse paper. However, as one of us held the balloon and the other lit the fuse the flame from the match went on the balloon and it blew up in our faces leaving us with the smell of singed eyebrows. We eventually got it to work. P.S Don't try this at home kids.
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X-Google-Thread: 1131b0,848b4417a6bd2 X-Google-Thread: 103407,848b4417a6bd2 X-Google-Thread: f64c6,848b4417a6bd2 X-Google-Attributes: gid1131b0,gid103407,gidf64c6,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Date: Sat, 11 Apr 2009 20:57:40 +0800 From: Davo <Dave@gmail.com> User-Agent: Thunderbird 2.0.0.21 (Windows/20090302) MIME-Version: 1.0 Newsgroups: sci.electronics.repair,aus.electronics,uk.radio.amateur Subject: Re: Does multicore solder deteriorate with age? References: <mn.53347d941293c360.100014@news.motzarella.org> <ArcOQuArz43JFwEi@b-howie.demon.co.uk> <svPDl.22452$fx5.20110@newsfe08.ams2> <49dfe231$1_7@news.peopletelecom.com.au> <mb0El.12490$Rh1.10494@newsfe10.ams2> In-Reply-To: <mb0El.12490$Rh1.10494@newsfe10.ams2> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Message-ID: <49e093cb$1_5@news.peopletelecom.com.au> Lines: 39 X-Original-NNTP-Posting-Host: news.people.net.au NNTP-Posting-Host: news.people.net.au X-Trace: news.waia.asn.au 1239461255 202.154.92.95 (11 Apr 2009 22:47:35 +0900) Path: arc1-ca.pugleaf.net!g2news2.google.com!news2.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!news.waia.asn.au!news.peopletelecom.com.au!not-for-mail