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Two unrelated questions: Water hardness and NaOH
Then again the chlorides in tap water can be problematic too. For me its the Ca and Mg in our incre ... |
20-11-2005 at 18:04
by: Twospoons |
Two unrelated questions: Water hardness and NaOH
You could also just put a bucket outside when it rains - why pay for distilled water when it falls o ... |
20-11-2005 at 13:32
by: Twospoons |
Any soil scientists out there?
"The devil farts in my face again ..." *sigh*
As you say, a quick look at Ebay reveals ... |
15-11-2005 at 18:05
by: Twospoons |
Any soil scientists out there?
I love gardening. I love growing vegetables without nasty pesticides. I want happy healthy plants. ... |
15-11-2005 at 14:11
by: Twospoons |
Laser design
[url=http://www.repairfaq.org/sam/lasersam.htm]Sam's Laser FAQ[/url] is the best single web res ... |
31-10-2005 at 13:21
by: Twospoons |
Plasma propulsion
Obviously, once out of the atmosphere, you need your own supply of ejection mass, but if you can ent ... |
19-10-2005 at 13:26
by: Twospoons |
Plasma propulsion
[quote][i]Originally posted by Marvin[/i]
The plasma engine is a waste of time for all practical ... |
18-10-2005 at 13:03
by: Twospoons |
Plasma reactor- Confinement,Heat sources
The bigger danger with the fusor is the hard X-rays that are produced well before neutron emission b ... |
17-10-2005 at 18:44
by: Twospoons |
homebrew aspirator
If the pump had a shaded pole motor (very likely) then I'm not surprised. The ones we used on ... |
13-10-2005 at 15:48
by: Twospoons |
Filling gas flasks at home using a fridge compressor
Compatability of some gases with the compressor oil may be an issue - check each one. I would also ... |
28-9-2005 at 14:22
by: Twospoons |
Alternative Lubricants
You can't have dug very hard. How about :
silicone oils, vegetable oils as wet lubricants,
mo ... |
27-9-2005 at 18:34
by: Twospoons |
Subjects Of A Questionable Nature
This board is very mild compared to roguesci. It was the pervading atmosphere of violence and destr ... |
27-9-2005 at 14:18
by: Twospoons |
Electric Shock
I'll start.
Not precisely chemistry, but given the use of electricty in a lot of experiments, ... |
20-9-2005 at 14:01
by: Twospoons |
Removal of surface oxide by copper(II) chloride
Hard anodised aluminium seems to be unaffected.
I had some used pcb etchant (ammonium persulfate + ... |
14-9-2005 at 22:20
by: Twospoons |
More on PbO2 electrodes
I made my lead nitrate with 60% acid - no dilution at all. The lead dissolved nicely - though there ... |
14-9-2005 at 18:43
by: Twospoons |
The best country to pursue amateur chemistry in.
Here in New Zealand the police only seem to be interested in busting meth and E labs. So if you buy ... |
12-9-2005 at 16:28
by: Twospoons |
CRTs
[quote][i]Originally posted by moose sniffer[/i]
: i know that crts are usually used to spray elect ... |
6-9-2005 at 23:24
by: Twospoons |
What about "glassy" carbon as an anode material in a chlorate or perchlorate cell?
I was thinking a boron / nitrogen doped diamond film could be good for perchlorate. I remember read ... |
6-9-2005 at 23:19
by: Twospoons |
!the tread IrC asked me to start.
Myself, as an electronics engineer for 16 years, I only use 'ohm's law' in linear sys ... |
6-9-2005 at 23:10
by: Twospoons |
electrostatic " Chucks "
The same trick was used on the old pen plotters, to hold the paper in place. |
5-9-2005 at 16:02
by: Twospoons |
Reaching higher temperatures
[quote][i]Originally posted by unionised[/i]
(finite charge, zero time). [/quote]
Uh, sorry but ... |
1-9-2005 at 15:12
by: Twospoons |
Water scrubber
Ok, you're doing a plate design 
For everyone else, this is what I was referring to: [url= ... |
24-8-2005 at 17:34
by: Twospoons |
DIY X-ray crystallography
Looks like a good application for a Marx generator. You could simply use a NST for charging, size t ... |
24-8-2005 at 16:28
by: Twospoons |
Water scrubber
[quote][i]Originally posted by frogfot[/i]
started out by making some filling by cutting small piec ... |
22-8-2005 at 20:36
by: Twospoons |
DIY X-ray crystallography
For a test crystal try quartz. At the quartz crystal assembly factory I worked at for a while, the c ... |
18-8-2005 at 15:50
by: Twospoons |
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