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PCB etching with ferric chloride
Is this a theoretical exercise or is there some practical result expected? From my own experience ... |
6-9-2004 at 14:12
by: Twospoons |
Ferromagnetic elements and compounds
There's also all the ferrites - a huge range of materials based on iron oxide combined with oth ... |
31-8-2004 at 14:12
by: Twospoons |
Mosquitos attractive frequencies
Forget sound. You want octenol, a proven chemical attractant for the little biting bastards.
Her ... |
30-8-2004 at 14:27
by: Twospoons |
KMnO4
If you see green crystals forming you're in trouble - I've been told they're extreme ... |
17-8-2004 at 19:58
by: Twospoons |
Crucibles and Metalcasting
Today I have my book with me "Pottery Materials" by John Colbeck, ISBN 0 7134 46951.
... |
11-8-2004 at 14:15
by: Twospoons |
Separation of tin and lead
Its not just *special* solders that have other metals added. Copper is a very common addition(~0.5% ... |
9-8-2004 at 20:30
by: Twospoons |
Crucibles and Metalcasting
I'm not too hot on the actual chemistry of these sintering type things, but I believe the soda ... |
9-8-2004 at 19:48
by: Twospoons |
Crucibles and Metalcasting
What you describe is similar in many respects to glaze formulations. Essentially you combine a refr ... |
9-8-2004 at 15:08
by: Twospoons |
Herbicides, substitutes anyone?
There is a method of weed control called 'solarizing'. This involves laying a sheet of bl ... |
4-8-2004 at 23:20
by: Twospoons |
Silver "does not arc"
Sounds like BS to me. Silver is often used because it has the rather nice property that its oxide i ... |
27-7-2004 at 19:59
by: Twospoons |
Electrical Furnace Contruction - My design and implementation
From my experience with making pottery and ceramics, the issue with thick clay crucibles (coffee mug ... |
26-7-2004 at 19:43
by: Twospoons |
