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Suggestion for keeping oil dry?
I've seen the musical ones. Thats a feature thats going to have to be some way down the track. I jus ... |
15-7-2012 at 17:56
by: Twospoons |
Suggestion for keeping oil dry?
Vacuum tube Tesla coil 
The variable cap is so I can easily tune the primary side oscillator into ... |
15-7-2012 at 15:12
by: Twospoons |
Suggestion for keeping oil dry?
I am making a high voltage variable capacitor by submerging a variable air-spaced capacitor in oil, ... |
15-7-2012 at 14:34
by: Twospoons |
identification of unusual electronic component, large.
[rquote=253116&tid=20610&author=watson.fawkes] That's enormous, and would be very instantly ... |
2-7-2012 at 14:14
by: Twospoons |
Sciencemadness turns ten! Congradulations!
Been nearly 8 years for me, and I still drop in every day (mostly lurking now). How time flies. Con ... |
10-6-2012 at 19:06
by: Twospoons |
High temperature, high speed thermometer
I would have said 'spectroscope' too. Ordinary IR pyrometers are not that fast. At 7000K analysing ... |
7-6-2012 at 13:55
by: Twospoons |
Water flouridation
I wonder how many smokers there are in the anti-fluoride brigade?
I have a mate who tells me about ... |
4-6-2012 at 19:11
by: Twospoons |
Cracking Diesel Fuel
I recall an experiment in chem class ( ~30 years ago) where we passed kerosene vapor over heated por ... |
20-5-2012 at 14:36
by: Twospoons |
air liquefier attempt, questions
Don't forget to put some kind of safety shield between you and those compressors. Just in case ...
... |
30-4-2012 at 22:12
by: Twospoons |
air liquefier attempt, questions
^ what he said. Also post compressor and water cooling you could add an air tank placed in a domesti ... |
11-4-2012 at 21:27
by: Twospoons |
How to control the temperature of an oil bath & PID controller equipment basics
Dann2, you are over thinking it. The PID algorithm does control the on ff
timing ratio of the outp ... |
4-4-2012 at 18:48
by: Twospoons |
How to control the temperature of an oil bath & PID controller equipment basics
The Omron controllers I use at work have an adjustable cycle time - down to 0.5 seconds. Unless you ... |
4-4-2012 at 15:55
by: Twospoons |
Substances with near room temp phase change
bahamuth : thanks for the "stormglass" tip. What a neat idea. I love it how these weird little thing ... |
27-3-2012 at 16:33
by: Twospoons |
On solar hot water systems
Used to be that PV cells needed as much energy to manufacture as they could produce in their lifetim ... |
31-1-2012 at 00:22
by: Twospoons |
Change wavelength of light?
[rquote=235106&tid=18700&author=Polverone]Most green laser pointers work by frequency doubli ... |
31-1-2012 at 00:16
by: Twospoons |
On solar hot water systems
3/4 of a litre of warm water makes for a very short shower! |
26-1-2012 at 18:49
by: Twospoons |
On solar hot water systems
Where did you get the idea that painted radiators are better than evacuated glass tubes with heat pi ... |
26-1-2012 at 14:55
by: Twospoons |
Recovering useable components from a car battery
There's the messy, toxic, environmentally unfriendly way : put the whole battery on top of a forced ... |
24-11-2011 at 20:36
by: Twospoons |
Eggs down car air vent
Trade up on a new car before it starts to smell.
People say H2S smells like rotten eggs: well I've ... |
9-11-2011 at 20:38
by: Twospoons |
Solar energy a pipe dream?
The only use I can think of for the fluidyne is pumping water in areas where the only energy source ... |
9-11-2011 at 17:30
by: Twospoons |
Garden Sulfur for Oxidizing Copper?
Yes Lime Sulphur definitely works - I've used it for that purpose myself. I usually add a bit of po ... |
8-11-2011 at 18:56
by: Twospoons |
Solar energy a pipe dream?
[rquote=226633&tid=17015&author=497]
Not really. As far as I know you can not build a sti ... |
6-11-2011 at 15:33
by: Twospoons |
Voltage varying centrifuge problem
Its only a low power motor, so a cycle skipping controller might do it. Don't know where you'd get ... |
22-9-2011 at 22:25
by: Twospoons |
A patent claiming 60-80% efficiency in solar energy
the efficiency claim probably only applies for a single wavelength. The same issue occurs with phot ... |
2-8-2011 at 15:16
by: Twospoons |
Solar energy a pipe dream?
I've always thought the first step for introducing solar should be domestic water heating. Its more ... |
19-7-2011 at 14:11
by: Twospoons |
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