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More on PbO2 electrodes
I have to ask the obvious question: have you checked the rest of your power supply? Could the condu ... |
1-5-2007 at 13:50
by: Twospoons |
Baking soda no longer OTC? Laugh? Cry? You decide
Looks like they've forgotten to ban the water, the other key ingredient. |
29-4-2007 at 17:45
by: Twospoons |
Anti-Glare material production/acquisition.
To what end? If all you are trying to do is not be seen by someone else when you are using them the ... |
27-4-2007 at 00:08
by: Twospoons |
toxic out gassing of acrylic?
I'd be less worried about the plexiglass, and more worried about the glue used to bond the plywood! ... |
26-4-2007 at 14:56
by: Twospoons |
Stannous Chloride
You might also try doping the SnO2 with Indium, as in ITO glass. Source: indium/tin lead-free solde ... |
25-4-2007 at 14:26
by: Twospoons |
elastic energy storage???
I was working for a company involved in industrial sized UPS systems. The energy storage was in a 1 ... |
12-4-2007 at 14:11
by: Twospoons |
Gas discharges
Helium is very pretty - sort of pink/orange. IIRC there are half a dozen emission lines across the ... |
5-4-2007 at 00:07
by: Twospoons |
Vacuum (2-7 torr range) Can it be achieved cheaply?
So you want to do something like [url=http://www.youtube.com/watch?v=G0i2Ea4_nLY]this?[/url]
That ... |
26-3-2007 at 14:10
by: Twospoons |
Gitting rid of Cl2
Hey SsgtHAZMAT - you're not sitting on a source of brackish water, are you? IIRC a lot of sandy des ... |
14-3-2007 at 22:14
by: Twospoons |
Gitting rid of Cl2
SsgtHAZMAT has to drink something. He's probably got water trucks arriving every day ( though beer ... |
12-3-2007 at 18:53
by: Twospoons |
Gitting rid of Cl2
The Cl2 does not react directly with the steel. It is used to oxidise Fe2+ to Fe3+, and the Fe3+ re ... |
12-3-2007 at 14:59
by: Twospoons |
Gitting rid of Cl2
Doesn't seem to me like the rate should be that much of an issue - just turn the valves down a bit ! ... |
12-3-2007 at 14:08
by: Twospoons |
Gitting rid of Cl2
The other way to get rid of it would be conversion to ferric chloride (FeCl3). This is another comm ... |
11-3-2007 at 16:49
by: Twospoons |
Electrochemical ozone generation
I've built a self-resonant inverter like this, but it was the two transistor push-pull version. Wo ... |
1-3-2007 at 22:33
by: Twospoons |
Need some help with a vacuum chamber! Last one imploded.
A 9kg propane cylinder would just about do it. Cut in half, weld on a flange, and bolt it back toge ... |
26-2-2007 at 21:53
by: Twospoons |
Powerful microwave oven
You can also put a choke ring around the hole where your glassware enters. This would be a large th ... |
4-2-2007 at 14:54
by: Twospoons |
Interesting cancer drugs?
So its toxic. So what? The cancer is likely to be terminal anyway so what have you got to lose? Hav ... |
31-1-2007 at 20:58
by: Twospoons |
Interesting cancer drugs?
I saw it on the New Scientist website. The sad thing is no-one wants to pay for trials, as the stuf ... |
30-1-2007 at 22:51
by: Twospoons |
Ferrofluid
Perhaps this is a silly question, but how strong a magnet did you use? |
11-1-2007 at 13:32
by: Twospoons |
Fish euthanasia
Would freezing work? Its supposed to be a humane way to kill crayfish / lobsters - as opposed to du ... |
28-12-2006 at 22:10
by: Twospoons |
Stencil etching
I have made paste stencils with great sucess using toner transfer on 0.005" brass sheet. The brass ... |
28-12-2006 at 13:13
by: Twospoons |
Where Chemistry & EMP Combine
The whole idea of the FCG is to extract energy from the explosive - fast. The initial current doesn ... |
20-12-2006 at 13:22
by: Twospoons |
Odd behaviour of Neodymium magnet
I tried the 1/2" plate. 3sec to fall 0.5m, so definitely much slower. Wish I'd tried this when we ... |
14-12-2006 at 13:44
by: Twospoons |
Odd behaviour of Neodymium magnet
Had to try the eddy current drag thingy. With the same magnet I used before, and a piece of right a ... |
13-12-2006 at 20:22
by: Twospoons |
Odd behaviour of Neodymium magnet
I'll see if I can video it. It would make an interesting post to youtube. |
13-12-2006 at 13:16
by: Twospoons |
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