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Copper plating cast iron skillet
[rquote=483746&tid=74204&author=j_sum1]Well, my suggestion is to leave it as is. ...

Thi ...
21-5-2017 at 20:44
by: Twospoons
Mold killer for air conditiong fan blades & directional slats - keep home healthy!
How about mounting a germicidal UV lamp in the system? Downside is potential for shadows, and UV lig ...
15-5-2017 at 21:12
by: Twospoons
Water >> H2 and 1/2O2 electrolysis
Ok, there are essentially two modes of power supply control: Voltage mode, where the output voltage ...
29-4-2017 at 16:23
by: Twospoons
Water >> H2 and 1/2O2 electrolysis
with 12V you would get about 4x the current as 3V.

12V x 400A = 4800W.

The extra energy is l ...
28-4-2017 at 01:19
by: Twospoons
Today, I march.
Bravo, sir! Bravo!
27-4-2017 at 15:24
by: Twospoons
Today, I march.
I met one once. She'd been down in Antarctica taking ice core samples, and analysing the isotopic co ...
26-4-2017 at 13:05
by: Twospoons
Alternative hobbies that appeal to those with interest in chemistry
For me it was a toss-up between a career in chemistry or a career in electronics. Both were hobbies ...
19-4-2017 at 21:38
by: Twospoons
Microwave didn't/doesn't melt or heat paraffin? - 2oz on high for almost 5 mins!
Some compounds absorb microwaves (2.45GHz) well, and some are virtually transparent. Polypropylene i ...
8-4-2017 at 20:40
by: Twospoons
chrome alum from Cr(III) acetate
Ah, this might be simpler:
CuSO4 : 32 g/100g
Cu acetate : 7.2 g/100g

So combining CuSO4 with Cr ...
3-4-2017 at 14:29
by: Twospoons
chrome alum from Cr(III) acetate
Trying to make some chrome alum ( KCr(SO4)2 ) for crystal growing.
I have a couple of small jars of ...
3-4-2017 at 14:13
by: Twospoons
Oxygen leak detection
Yes, i'd thought of that too. I could possibly flood the equipment with nitrogen or something else i ...
28-2-2017 at 15:26
by: Twospoons
Oxygen leak detection
I'm looking for a method of finding slow leaks in an oxygen gas dispensing system. The leaks I'm try ...
28-2-2017 at 13:38
by: Twospoons
Seasoning Cast iron - What happens in the process?
[rquote=473265&tid=72006&author=RogueRose]

Was this done each time the pan was used or wa ...
30-1-2017 at 19:44
by: Twospoons
Seasoning Cast iron - What happens in the process?
The method I was shown by my nephew (a chef) involves warming the pan, putting in a little oil, then ...
29-1-2017 at 23:08
by: Twospoons
Mylar vs Al Foil IR hear reflectivity efficiency
[rquote=472386&tid=71828&author=Fulmen]

So why do emergency services use it to prevent/tr ...
20-1-2017 at 13:25
by: Twospoons
Mylar vs Al Foil IR hear reflectivity efficiency
I think adding the foil will make bugger all difference, given the low temperatures. Heat transfer b ...
17-1-2017 at 19:06
by: Twospoons
Steam pressure chamber for 1000C
Personally i would reverse your setup and build the furnace inside the pressure chamber. That way yo ...
13-1-2017 at 14:45
by: Twospoons
recirulating vacuum aspirator troubleshooting
Does the pump have a reservoir? Diaphragm pumps would usually have a pulsing flow, so you'd need a ...
11-1-2017 at 22:13
by: Twospoons
Our Entire Maths System is Fundamentally Wrong
So now you see that money has no intrinsic worth, and is merely a placeholder by agreement.
29-11-2016 at 13:22
by: Twospoons
Our Entire Maths System is Fundamentally Wrong
In the field of electronic and electrical engineering complex numbers are incredibly useful, as they ...
28-11-2016 at 21:01
by: Twospoons
Equations for real gases
Thanks for that suggestion. I've run the ideal eqn against the Redlich-Kwong eqn and I get a 'Z' of ...
18-10-2016 at 18:55
by: Twospoons
Equations for real gases
Initial mass is reasonably well known - its a one time use cylinder, so has a pre-defined mass of O2 ...
18-10-2016 at 17:05
by: Twospoons
Equations for real gases
Knowing initial pressure, mass and temp I can work out volume no trouble - and doing it this way wil ...
18-10-2016 at 16:33
by: Twospoons
Equations for real gases
I have a problem I could use some expert help with.

I have a cylinder of oxygen, when full it con ...
18-10-2016 at 15:53
by: Twospoons
What about "glassy" carbon as an anode material in a chlorate or perchlorate cell?
10^7 Ω-cm isn't disastrous. A 10cm^2 electrode with a 1um coating is just 10 ohms additional resist ...
1-9-2016 at 19:21
by: Twospoons
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