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Stainless steel pot ok?
Search on ebay for " diamond core drill". These can be used on glass - with plenty of water for coo ... |
27-8-2007 at 19:28
by: Twospoons |
Extraction of Oxygen from air by electrolysis
The process interests me because it doesn't require compressors, or valves, or zeolite adsorbers, or ... |
23-8-2007 at 17:58
by: Twospoons |
Extraction of Oxygen from air by electrolysis
I found this rather interesting patent about extracting oxygen from air using aqueous electrolysis.
... |
22-8-2007 at 17:39
by: Twospoons |
Dammit, now I have a cybersquatter using my business name as a domain name...
Someone probably saw the registration of your business name when you were incorporated - it is usual ... |
19-8-2007 at 20:33
by: Twospoons |
iron mess to clean from rb flask
IIRC iron stains are particularly hard to remove from glass, as the iron penetrates somewhat. You m ... |
8-8-2007 at 18:08
by: Twospoons |
compressed air to store energy
For a more environmentally friendly solution, look up Vanadium Redox batteries. Uses V in H2SO4 - o ... |
7-8-2007 at 14:29
by: Twospoons |
salter's ducks
http://www.oceanpd.com/default.html
I only know about this as it was in my local paper. Seems New ... |
6-8-2007 at 22:25
by: Twospoons |
More on PbO2 electrodes
@Hashashan
Here's the controller I built for a hotplate:
[url=http://www.sciencemadness.org/talk ... |
31-7-2007 at 18:08
by: Twospoons |
Diaphram for Electrolythic Cl cell
Curious, I'm just in the process of building a 4 cell electrolyser for making hydrogen (the kids lov ... |
21-7-2007 at 21:04
by: Twospoons |
More on PbO2 electrodes
Looks like it needs some fairly rigid temperature control - not hard though, and worth the effort. ... |
19-7-2007 at 21:48
by: Twospoons |
More on PbO2 electrodes
Why?
Its interesting to look at a periodic table: there's tin, under Ge and Si. To the left ar ... |
18-7-2007 at 22:20
by: Twospoons |
More on PbO2 electrodes
This mention of the volatility of the chloride jogged my memory of a web page describing a DIY metho ... |
18-7-2007 at 16:16
by: Twospoons |
Mozzie alert
From what I've read around the subject of mosquito traps, the various attractants often work synergi ... |
11-7-2007 at 15:09
by: Twospoons |
Mozzie alert
Citronella oil is supposed to repel mozzies. I'm not sure how effective it is, but theres a solid ma ... |
6-7-2007 at 21:58
by: Twospoons |
Rocket Fuel
I bought the Wickman book some years back. Good book! Lots of info, and a step-by-step method for ... |
5-7-2007 at 22:23
by: Twospoons |
Perchlorate manufacture (not) with Graphite
Spray coating onto a heated substrate looks interesting as a way to quickly build a thick layer. Won ... |
3-7-2007 at 15:18
by: Twospoons |
Rocket Fuel
Xenoid has already provided you with one of the best net resources for building rockets. Go there. ... |
30-6-2007 at 22:18
by: Twospoons |
More on PbO2 electrodes
Thanks, but I don't really need to save nitric. I have about 12 litres of 68%, just sitting around, ... |
28-6-2007 at 18:21
by: Twospoons |
Mercury -Toxicity
From a page about liquid mirror telescopes, which in this case is a 2.7m diameter pool of mercury.
... |
27-6-2007 at 21:22
by: Twospoons |
More on PbO2 electrodes
Given that my local pottery supplier has both cobalt oxide and carbonate, which is going to be easie ... |
27-6-2007 at 13:53
by: Twospoons |
"Off" day - turning our electronics off for a day
Your toilet may work, but the pump in the wet-well down the street certainly wont - it is only a mat ... |
26-6-2007 at 21:47
by: Twospoons |
Crazy Idea - What do you think?
The emphasis on efficiency is relevant to cells intended for space use, where reductions in launch w ... |
25-6-2007 at 14:37
by: Twospoons |
The Technological Sword Cuts Both Ways: Vaccines Being Developed Against Nicotine, Cocaine, Heroin, and Likely Amphetamines
Isn't priming the immune system against a chemical essentially the same as inducing an allergy? If ... |
24-6-2007 at 22:07
by: Twospoons |
Crazy Idea - What do you think?
There's as much energy in the IR as there is in the visible.
Green doesn't make up that much of the ... |
24-6-2007 at 15:57
by: Twospoons |
More on PbO2 electrodes
Thats a really interesting patent. Perhaps the ceramic particles they mention could be made from ma ... |
22-6-2007 at 20:37
by: Twospoons |
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