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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
What about "glassy" carbon as an anode material in a chlorate or perchlorate cell?
Great find! Thanks for posting that paper.
30-8-2016 at 17:08
by: Twospoons
Glow in near vacuum gas ampoules
There's no indication if the output is DC or AC. From the description of the purpose (ignition) I'd ...
14-6-2016 at 17:56
by: Twospoons
Glow in near vacuum gas ampoules
The power sources used by ozone generators would probably work quite well.
http://www.aliexpress.c ...
13-6-2016 at 15:19
by: Twospoons
Gun design
[rquote=451107&tid=66436&author=ecos]

the missing information , what is the relation betw ...
8-6-2016 at 15:13
by: Twospoons
Building a Heating Element?
Kanthal wont know the difference. AC is much easier. You could then use a variac for power control. ...
7-6-2016 at 16:16
by: Twospoons
Can we make any fibers, threads, wires, glasses, bottles, foils...?
Iron and silicon-steel foil is used to make 'tape-wound' cores for transformers. http://www.mkmagnet ...
1-6-2016 at 20:27
by: Twospoons
Reclaimed Gold Pins from Cellphones
You do realise that those pins are merely plated with gold, not solid - with said plating likely bei ...
17-5-2016 at 18:31
by: Twospoons
UV-C L.E.D. ebay source
If you are in the market for deep UV Leds ... [url=http://www.roithner-laser.com/deepuv_to_select.ht ...
14-5-2016 at 01:25
by: Twospoons
Compressor for CO2, oxygen
Whatever you do don't run pure O2 into a compressor that is not specifically designed for it. Bad th ...
12-5-2016 at 19:47
by: Twospoons
uv for tlc
250nm is short enough you need to be very careful. I'd avoid any skin exposure, not just eyes. Any s ...
4-5-2016 at 15:56
by: Twospoons
Building a Heating Element?
The chip handles the cold junction compensation with an internal temperature sensor, so its importan ...
2-5-2016 at 18:50
by: Twospoons
Building a Heating Element?
[url=https://www.maximintegrated.com/en/products/analog/sensors-and-sensor-interface/MAX31855.html]T ...
2-5-2016 at 16:41
by: Twospoons
Building a Heating Element?
If I were you I'd just buy a PID controller - you get a nice display and controls in a nice case wi ...
1-5-2016 at 19:38
by: Twospoons
Basic Induction Heater Safety?
RF and AC are the same thing, just different frequency. I'd say don't touch - the work coil could ea ...
17-4-2016 at 14:25
by: Twospoons
Combining low voltage induction heaters?
There is a reasonable chance that simply putting the work coils from several ZVS units next to each ...
11-4-2016 at 21:58
by: Twospoons
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