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Large Li-ion battery packs, compact jump starters and truth in advertising?
This company offers a supercapacitor jump start unit, claimed to charge in 2 minutes off vehicle 12V ... |
15-12-2017 at 18:59
by: Bert |
Large Li-ion battery packs, compact jump starters and truth in advertising?
I have a Cummins 6.7 litre turbo diesel in a 3/4 ton Dodge Pick up (a Ute, to the ozzys). It has two ... |
15-12-2017 at 18:35
by: Bert |
Large Li-ion battery packs, compact jump starters and truth in advertising?
Researching the compact Li-ion based vehicle jump starters which have proliferated recently. The fir ... |
15-12-2017 at 14:23
by: Bert |
"Draining" a fluorescent bulb (tube)
How would you replace the ends of the tube, and with what material?
A long time ago, I tried to r ... |
15-12-2017 at 10:51
by: Bert |
Moisture absorbing (from air) capacity of MgCl2 & CaCl2 (both anhydrous) - which is better?
We use the straight Calcium chloride ice melter to dehumidify inside explosive magazines without nee ... |
14-12-2017 at 14:10
by: Bert |
A long time ago, on a forum far, far away...
[quote]
Furthermore, my interest in diazonium compounds was piqued by this activity so I did a se ... |
14-12-2017 at 11:30
by: Bert |
Salts of Methyl Nitrite
Just on the off chance, I will set a bit of mixed ammonium nitrate/Sodium nitrite in some cheap, ... |
13-12-2017 at 15:16
by: Bert |
Glassware for Sale
Please check your U2U.
[Edited on 12-12-2017 by Bert] |
12-12-2017 at 14:40
by: Bert |
Gun powder/ Black powder question
Bamboo charcoal is an odd case- It is very high in Silica, and is one of the lowest performers for s ... |
11-12-2017 at 16:09
by: Bert |
Gun powder/ Black powder question
[rquote=500094&tid=78842&author=sodium_stearate]I too experimented with the basic black powd ... |
11-12-2017 at 13:59
by: Bert |
Nano Aluminum: 30-100nm Aluminum powder, nano sized Hafnium carbide powder- Any interest?
[rquote=500019&tid=78847&author=zts16]What is hafnium carbide even used for? I just looked i ... |
11-12-2017 at 13:43
by: Bert |
Nano Aluminum: 30-100nm Aluminum powder, nano sized Hafnium carbide powder- Any interest?
I have been offered nano Al powder, 30 to 100nm size.
Also HfC in Nano size, specifics of particl ... |
10-12-2017 at 18:40
by: Bert |
Gun powder/ Black powder question
Woelen, if the charcoal and Sulfur are sufficiently fine? And you have alcohol, water and a microwav ... |
10-12-2017 at 15:44
by: Bert |
Gun powder/ Black powder question
We used to burn off the scraps of black match, quick match and leftover powder from work, to keep th ... |
10-12-2017 at 13:45
by: Bert |
Gun powder/ Black powder question
I just wrote the greatest reply, and the internet ATE it. Grrr.
Until I recover, how about a ... |
10-12-2017 at 11:45
by: Bert |
Wood burns in air at 1900 C ?
Temp measured was in the real world. I assumed he was asking why the IR thermometer was giving him a ... |
10-12-2017 at 10:59
by: Bert |
Wood burns in air at 1900 C ?
There is rather more air moving through an open wood fire than that which supplies exactly the ammou ... |
10-12-2017 at 08:25
by: Bert |
Wood burns in air at 1900 C ?
[quote]
Note these are theoretical, not actual, flame temperatures produced by a flame that loses ... |
10-12-2017 at 06:24
by: Bert |
Gelatin based adhesive
Boric acid Is probably a preservative, microorganisms will otherwise be happy to eat wet jello. A lo ... |
9-12-2017 at 11:42
by: Bert |
Acetylacetonates?
The Reverand Ron Lancaster was the founder of Kimbolton, starting when he was a chemistry teacher at ... |
9-12-2017 at 09:00
by: Bert |
Question about the necessity of a filtration workup
One of my teachers used to say that free information on explosives you found on the internet is ofte ... |
9-12-2017 at 08:37
by: Bert |
Acetylacetonates?
It is easier in many parts of USA. I have a federal license to manufacture, and another to import.
... |
9-12-2017 at 07:35
by: Bert |
Gentle rust removal w/o nasty residues
Don't leave cast Iron or high Carbon spring steel too long in the mollases bath.
Cast Iron will s ... |
9-12-2017 at 05:58
by: Bert |
Acetylacetonates?
The PDF I uploaded has instructions for Co3+, have not seen anything on +2, but haven't looked, beca ... |
8-12-2017 at 22:56
by: Bert |
Acetylacetonates?
I recall posting a procedure here for doping a porous ceramic matrix with (cheaper!) non platino ... |
8-12-2017 at 07:31
by: Bert |
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