Hazards of repair
in [Repair]
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From: ian field on 2 Jan 2010 12:02 "Phil Hobbs" <pcdhSpamMeSenseless(a)electrooptical.net> wrote in message news:4B3E1EA1.7050706(a)electrooptical.net... > On 1/1/2010 1:45 AM, bob urz wrote: >> http://www.bvws.org.uk/405alive/tech/safety.html >> >> I especially like the radioactive turntable.... >> >> bob > > Fun. Not 100% accurate, though--the getter inside tubes is not mercury, > it's usually sodium metal. Mercury has a high vapour pressure, and was > used in mercury vapour rectifiers and thyratrons, but not in ordinary > tubes. Also there's nothing too nasty about lithium other than that it > burns easily. Lithium compounds were used as antipsychotic drugs, but apparently they're pretty nasty stuff and have been replaced with other things.
From: Mike Tomlinson on 2 Jan 2010 12:32 In article <4B3E1EF3.3030202(a)electrooptical.net>, Phil Hobbs <pcdhSpamMe Senseless(a)electrooptical.net> writes > Mercury has a high vapour >pressure, and was used in mercury vapour rectifiers There's some fantastic photos of those on the web. I don't care how safe they are; I'd be very reluctant to go near one, operating or not. -- (\__/) (='.'=) Bunny says Windows 7 is Vi$ta reloaded. (")_(") http://imgs.xkcd.com/comics/windows_7.png
From: Jeff Liebermann on 2 Jan 2010 13:04 On Sat, 2 Jan 2010 12:19:37 -0000, "N_Cook" <diverse(a)tcp.co.uk> wrote: >Are you related to this guy? No relationship or connection. There are some small similarities between his original motivation and mine. I won't go there. >The Radioactive Boy Scout: The True Story of a Boy Who Built a Nuclear >Reactor in His Shed I've read the book with much fascination. Great story and well worth reading. The problem is the book contains a few errors and some omissions possibly intended to prevent imitation. Near the end, he had successfully built a crude breeder reactor. Fortunately it never hit critical mass. <http://en.wikipedia.org/wiki/David_Hahn> A photo shows the effects of what I guess is excessive radioactive Thorium byproducts (i.e. Thoron gas) exposure: <http://www.freerepublic.com/focus/f-news/1887600/posts> Also note the photo of his original reactor. I haven't tried to build a fusion reactor, yet: <http://www.fusor.net> -- Jeff Liebermann jeffl(a)cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558
From: JeffM on 2 Jan 2010 13:38 >JeffM wrote: >>A fun post to read. >> Jeff Liebermann wrote: >Not if you're the person involved. > Exactly. http://google.com/search?q=%22*-definition-of-comedy-is-tragedy-plus-time >>Happy New Year >> >Yeah right. New laws, new taxes, same old headaches. > Mostly bureaucrats looking like they're doing SOMETHING. http://google.com/search?q=%22+difference.between.change.and.progress Changes do keep the lawyers and other criminals occupied figuring out how to end-run the new regulations, showing us all how they're smarter than everybody else.
From: Michael A. Terrell on 2 Jan 2010 20:16
ian field wrote: > > "Phil Hobbs" <pcdhSpamMeSenseless(a)electrooptical.net> wrote in message > news:4B3E1EA1.7050706(a)electrooptical.net... > > On 1/1/2010 1:45 AM, bob urz wrote: > >> http://www.bvws.org.uk/405alive/tech/safety.html > >> > >> I especially like the radioactive turntable.... > >> > >> bob > > > > Fun. Not 100% accurate, though--the getter inside tubes is not mercury, > > it's usually sodium metal. Mercury has a high vapour pressure, and was > > used in mercury vapour rectifiers and thyratrons, but not in ordinary > > tubes. Also there's nothing too nasty about lithium other than that it > > burns easily. > > Lithium compounds were used as antipsychotic drugs, but apparently they're > pretty nasty stuff and have been replaced with other things. All traces of Lithium had to removed from the kU band telemetry equipment we supplied to NASA for the Space Station because they considered it a health & a safety hazard. -- Greed is the root of all eBay. |