| Search |
| [Next Page] |
Blowing up a resistor at the end of 100m of wire
Well, I have a variety of rocket motor ignition systems based on charging up photoflash capacitors a ... |
29-1-2009 at 18:22
by: Xenoid |
Forget everything else, diamond is the answer!
Interesting find jp.....
.....but it's bloody expensive, more than I paid for my Pt coated electr ... |
29-1-2009 at 11:46
by: Xenoid |
synthetic corundum
Congratulations bluemike, I've often thought of trying this myself.
Are you using aluminium powde ... |
27-1-2009 at 21:13
by: Xenoid |
Any geologists in here? Strange find.
Oh!
Looking at the photo again and reading your description, I gather the left part of the nodule ... |
15-1-2009 at 14:26
by: Xenoid |
Any geologists in here? Strange find.
Well, I am (was) a geologist and (assuming it is not a bit of rusty old iron or steel) it looks like ... |
15-1-2009 at 13:28
by: Xenoid |
Ash of coal: K2CO3 ?
Several years ago, when we moved into our current home, I discovered the open fireplace had an ash p ... |
24-12-2008 at 12:31
by: Xenoid |
Thoughts On Anodes
[quote][i]Originally posted by Rosco Bodine[/i]
Experiments were begun by a couple of people here, ... |
25-11-2008 at 09:21
by: Xenoid |
Don't Rotate - Vibrate!
With regard to bubble elimination during plating.
When I finally get around to experimenting with ... |
18-11-2008 at 19:19
by: Xenoid |
Thoughts On Anodes
[quote][i]Originally posted by hissingnoise[/i]
That stated current density, though, is highly unli ... |
17-11-2008 at 14:47
by: Xenoid |
Thoughts On Anodes
[quote][i]Originally posted by Swede[/i]
Slightly off-topic: One thing I encountered in a previous ... |
17-11-2008 at 10:42
by: Xenoid |
Thoughts On Anodes
[quote][i]Originally posted by tentacles[/i]
maybe even add a touch of KOH to ensure a high pH. [/ ... |
11-11-2008 at 20:06
by: Xenoid |
Thoughts On Anodes
[quote][i]Originally posted by tentacles[/i]
Noone wants to comment on maintaining pH in a perchl ... |
11-11-2008 at 19:26
by: Xenoid |
What to do with HgI2
A couple of quickies from Mellors;
HgI2 exists in two forms, red and yellow. If the red form whic ... |
8-11-2008 at 10:51
by: Xenoid |
Strange manganese dioxide (?)
@ blogfast, woelen
Hi guys, I decided to do a couple of quick experiments.
Firstly, I strongly ... |
1-11-2008 at 21:07
by: Xenoid |
Strange manganese dioxide (?)
@ blogfast, woelen
From Mellors; Manganic sulphate, Mn2(SO4)3 is formed as a dark green powder (p ... |
31-10-2008 at 15:39
by: Xenoid |
Strange manganese dioxide (?)
Yes, what you may have is a mixture of oxides, possibly originally crude MnO2 (pyrolusite) which has ... |
28-10-2008 at 12:30
by: Xenoid |
Strange manganese dioxide (?)
@ blogfast
Are you sure what you have is not Mn3O4 (naturally - hausmanite). Manganosic oxide is ... |
28-10-2008 at 11:51
by: Xenoid |
Thoughts On Anodes
[quote][i]Originally posted by tentacles[/i]
There's probably a chart somewhere that's very hard to ... |
28-10-2008 at 11:30
by: Xenoid |
Thoughts On Anodes
[quote][i]Originally posted by dann2[/i]
Are modern Perchlorte cells pH controlled?
[/quote]
... |
25-10-2008 at 12:12
by: Xenoid |
Thoughts On Anodes
@ Dann2
Geez! - I found one of those in the back paddock a while back! I wondered what it was - T ... |
23-10-2008 at 15:57
by: Xenoid |
Thoughts On Anodes
Huh! Tried to edit my post and it was deleted!!!
Anyway the gist of it was;
I have a whole bun ... |
23-10-2008 at 15:09
by: Xenoid |
Thoughts On Anodes
Hi Swede
A quick perusal of chlorinator cell specifications, for example here;
http://www.pool ... |
23-10-2008 at 14:05
by: Xenoid |
Thoughts On Anodes
[quote][i]Originally posted by dann2[/i]
The scene looks more like a photo from DeNora's repair sh ... |
21-10-2008 at 14:28
by: Xenoid |
MMO Chlorinator Cell Electrodes
Here's my latest haul from the local Swimming Pool - Spa maintenance centre. Followers of the variou ... |
19-10-2008 at 17:10
by: Xenoid |
High pressure micro cutter.
A quick "google" indicates engine manufacturers are now looking at pressures of;
2000 bar = 200MP ... |
17-10-2008 at 18:45
by: Xenoid |
| [Next Page] |
