A good digital oscilloscope?
in [Design]
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From: Robert Latest on 10 Dec 2009 12:26 Joerg wrote: > Back in those days watch dials would be readable all night, not nearly > have that much decay. That is no longer the case, no matter what fancy > material they use. I wonder if the phosphorescence of that radium compound has anything to do with the radium's radioactivity. Maybe the radioactivity helps to get the energy into or back out of the long-term storage states. robert
From: Robert Latest on 10 Dec 2009 12:34 Jan Panteltje wrote: > 'Spiritus' is 85% Ethanol, and 3% Methanol, plus a horribe smell and > taste added... Vodka is expensive, and only 40%, heavely taxed here. I don't think there's methanol in it. robert
From: Jan Panteltje on 10 Dec 2009 12:52 On a sunny day (10 Dec 2009 17:34:26 GMT) it happened Robert Latest <boblatest(a)yahoo.com> wrote in <7ocpp2F3p9ht0U2(a)mid.uni-berlin.de>: >Jan Panteltje wrote: >> 'Spiritus' is 85% Ethanol, and 3% Methanol, plus a horribe smell and >> taste added... Vodka is expensive, and only 40%, heavely taxed here. > >I don't think there's methanol in it. > >robert Spiritus has it written on the bottle, contains: 85 % Ethanol max 3 % Methanol. Vodka I dunno, LOL.
From: Rich Grise on 10 Dec 2009 12:53 On Thu, 10 Dec 2009 17:15:45 +0000, Jan Panteltje wrote: > > God beware that those mosquitos ever get an entry in the world of > 'software patents'. That would kill any innovation in IT by small > companies. No to software patents! > Oops, is that sentence patented? > Probably not, but maybe copyrighted. ;-) What that means is, whatever money you make off of it, you have to pay the copyright owner. ;-) Cheers! Rich
From: Rich Grise on 10 Dec 2009 13:08
On Thu, 10 Dec 2009 17:52:32 +0000, Jan Panteltje wrote: > On a sunny day (10 Dec 2009 17:34:26 GMT) it happened Robert Latest >>Jan Panteltje wrote: >>> 'Spiritus' is 85% Ethanol, and 3% Methanol, plus a horribe smell and >>> taste added... Vodka is expensive, and only 40%, heavely taxed here. >> >>I don't think there's methanol in it. > > Spiritus has it written on the bottle, contains: 85 % Ethanol > max 3 % Methanol. > > Vodka I dunno, LOL. In the US, it's called "denatured alcohol," and has warnings all over the container "Caution - can not be made nonpoisonous" or some such. Vodka is 80 proof, which is 40% - in some states you can get "grain alcohol" which is 95% ethanol, or 190 proof, which is as pure as it can be distilled, since a 95%-5% mix is has the lowest boiling point of any mixture of ethanol and water. I tried some "Everclear grain alcohol" once that I got in a liquor store in Hudson, WI, 190 proof, and if you drink a small enough amount (like half a normal shot in your drink), it's a pretty awesome buzz, but you have to be very careful with it. :-) Cheers! Rich |