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Portable DC source for electric arc-Ruby synthesis by the Henry Moissan method
One other advantage of buying a stick welder for this is when you have finished playing with your ar ... |
26-12-2022 at 13:44
by: Twospoons |
Portable DC source for electric arc-Ruby synthesis by the Henry Moissan method
The difficulty you face with using server power supplies is the internal overcurrent protection - ex ... |
25-12-2022 at 11:46
by: Twospoons |
Unfamiliar Microscope
It is possible to take pictures through a microscope using a phone camera, but it requires a very st ... |
18-11-2022 at 13:07
by: Twospoons |
Unfamiliar Microscope
Thats the type I use all the time in PCB inspection and soldering, though I have a ring light around ... |
17-11-2022 at 12:08
by: Twospoons |
Sulfur/Selenium/Tellurium High-K dielectric
Well if I were to build my own capacitors I'd be using paper-in-oil for the dielectric, because i'd ... |
2-11-2022 at 12:38
by: Twospoons |
Sulfur/Selenium/Tellurium High-K dielectric
Pity they didn't show K vs electric field strength. That would have been interesting to compare agai ... |
1-11-2022 at 15:18
by: Twospoons |
Production of Iron powder with very high surface area using electrowinning of iron metal anode.
Nice. I have an application for iron powder loaded epoxy - this could be just the thing. |
31-10-2022 at 17:27
by: Twospoons |
Using a(n Ag) mirror RBF to carry out reaction with fused alcali
Electroplating would allow the build up of a thick metal layer, such that the metal to glass adhesio ... |
25-10-2022 at 13:24
by: Twospoons |
Using a(n Ag) mirror RBF to carry out reaction with fused alcali
You should be able to electroplate other metals on top of a silver mirror |
24-10-2022 at 10:55
by: Twospoons |
Replicating Commercial EBW Gold Connection using LED
Good luck removing the silicone without breaking the wire. Gold bond wire is incredibly soft, becau ... |
16-10-2022 at 11:20
by: Twospoons |
The old aspirin trick
What does it do to the soldering iron tip? The tips for my iron are 30 bucks a piece, so I'd hate to ... |
21-9-2022 at 11:53
by: Twospoons |
The old aspirin trick
[rquote=676695&tid=158893&author=sodium_stearate]
As for the chemical makeup of this enamel ... |
15-9-2022 at 11:28
by: Twospoons |
Orthosilicate esters from silica gel
Stumbled on this today : direct synth of tetraethyl orthosilicate from ethanol and silicon using a c ... |
14-9-2022 at 21:34
by: Twospoons |
The old aspirin trick
What kind of enameled wire? Urethane or polyimide? |
13-9-2022 at 18:54
by: Twospoons |
HELP! EU/DE/FR: Impending infrastructural apocalypse and possibility of civil war
[rquote=676136&tid=158800&author=Bedlasky]I rather live another day to fight back, than free ... |
28-8-2022 at 12:12
by: Twospoons |
Using screen as input/output interface
[rquote=676060&tid=158839&author=yobbo II]When connecting stuff to a computer it can be a bi ... |
25-8-2022 at 18:20
by: Twospoons |
DIY Cheap "Proprietary" Thermal Probe?
PT-1000 sensing elements rated to 600C can be had for under $10, from reputable suppliers like Digik ... |
18-8-2022 at 17:53
by: Twospoons |
Using microinverter for solar panels as 230 V AC inverter?
There is another potential issue: MPPT (maximum power point tracking). A battery does not look like ... |
15-8-2022 at 20:33
by: Twospoons |
HELP! EU/DE/FR: Impending infrastructural apocalypse and possibility of civil war
[rquote=675667&tid=158800&author=Gargamel]
In my opinion these are folks that secretly wish ... |
8-8-2022 at 14:41
by: Twospoons |
How to use a PT100 resistor in corrosive environment
I've used a MAPP torch to soften and fuse borosilicate successfully.
|
3-8-2022 at 19:32
by: Twospoons |
Bitumenous Membrane – comercial product with unusual properties
Many years ago I used a product called "Mulseal" to seal cables into slots in tarmac. It was a bitum ... |
16-7-2022 at 02:19
by: Twospoons |
How to measure the inner diameter of a circle?
You want a vernier caliper. They range from cheap and cheerful plastic ones for a few bucks to expen ... |
4-7-2022 at 14:39
by: Twospoons |
Steel chilling cubes
Specific heat of water is 9x that of steel, 4.2 vs 0.46. But more important is the heat of fusion, w ... |
27-6-2022 at 11:55
by: Twospoons |
Poor mans fume hood
I replaced my kitchen range hood with a nice shiny new one, after mice got in and chewed up the old, ... |
26-6-2022 at 18:31
by: Twospoons |
Is it reasonable to modify/crack paraffin candle wax to achieve different viscosity?
Perhaps 'alloy' would be a better word than 'dissolve'. Note that some hot-glue sticks (the white o ... |
6-6-2022 at 15:34
by: Twospoons |
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