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A lab 40V 250W power supply
What about the new "inverter-type" welding-transformers ? I saw some for 100 EUR: 10-80 A current ca ... |
5-10-2008 at 14:17
by: chief |
HClO3 from Pb(ClO3)2 + H2SO4
I want to try NaMnO4, therefor NaClO3. From the NaMnO4 I could go to some of the other manganates .. ... |
5-10-2008 at 11:58
by: chief |
HClO3 from Pb(ClO3)2 + H2SO4
Since I have a hard time recrystallizing NaClO3 from NaClO3/NaCl-solution (want to get rid of all ch ... |
5-10-2008 at 07:21
by: chief |
problem with time travel
Those who wonder about religion are gonna, scientifically, like this video (I bet):
http://www.yout ... |
5-10-2008 at 03:44
by: chief |
HCl by PVC-decomposition
I did it (!) when I was a teenager and experimenting; no sources of HCl or HNO3 were available ... |
5-10-2008 at 02:35
by: chief |
HCl by PVC-decomposition
Seems I had the most stupid idea around ... |
4-10-2008 at 15:50
by: chief |
HCl by PVC-decomposition
When I was a kid I would, for my experimenting, make the HCl by dry-distillation of PVC-plastique .. ... |
4-10-2008 at 01:58
by: chief |
Versuchschemie was hacked (German forum down)
They deserve it !
==> 1st their software _has_ bugs, like eg. the user-registration-procedure, w ... |
3-10-2008 at 07:17
by: chief |
False DNA-test-positives possible ?
Thats interesting:
==> When in some places it's not allowed to use the DNA-sequencing as main p ... |
3-10-2008 at 06:53
by: chief |
False DNA-test-positives possible ?
Everyone knows it: From time to time another crime is investigated via DNA-sequencing loads of sampl ... |
3-10-2008 at 04:11
by: chief |
Computing energetic properties and crystal density of energetic materials
Yeah, Thanks ! While I stay critical and don't fool myself I at least can grow on the problem ... |
1-10-2008 at 10:51
by: chief |
Computing energetic properties and crystal density of energetic materials
I bet you can't name a single compound that was found by means of your method, right ?
The formulae ... |
1-10-2008 at 07:52
by: chief |
Computing energetic properties and crystal density of energetic materials
RDX-density-prediction:
First:
==> You just need the structure of the RDX;
==> this you ... |
1-10-2008 at 02:04
by: chief |
Computing energetic properties and crystal density of energetic materials
Putting data into black-box-programs is _not_ science ! Besides commercial and half-commarcial softw ... |
30-9-2008 at 09:34
by: chief |
Computing energetic properties and crystal density of energetic materials
Maybe it's possible to predict some of the properties of the explosive, as long as the bondings and ... |
29-9-2008 at 13:23
by: chief |
GBL: 600 raids in Germany, Austria, Switzerland
In the post immediately before this one I said not to turn this into a thread about drug legalizatio ... |
28-9-2008 at 07:18
by: chief |
HCl via vitriole + NaCl
In German: "VitriolOel == H2SO4", "Eisenvitriol == Fe-salt of H2SO4", etc. .
"Oil of vitriol" == H2 ... |
26-9-2008 at 02:47
by: chief |
HCl via vitriole + NaCl
And maybe the Fe could dissolve in the Na2SO4-solution by it's own galvanic potential/energy, just b ... |
25-9-2008 at 15:48
by: chief |
HCl via vitriole + NaCl
Has anyone tried this:
Alchemists made HCl by distillig NaCl with vitriole, source:
http://www.ret ... |
25-9-2008 at 15:39
by: chief |
More on PbO2 electrodes
And it weigths 77 gm more than another of the same sort (but with the original copper-coating in pla ... |
25-9-2008 at 12:15
by: chief |
More on PbO2 electrodes
and: |
25-9-2008 at 12:07
by: chief |
More on PbO2 electrodes
the next: |
25-9-2008 at 12:06
by: chief |
More on PbO2 electrodes
Sorry for the lousy quality of the webcam; here 3 images, each as attachment (since img-code has to ... |
25-9-2008 at 12:05
by: chief |
More on PbO2 electrodes
I don't want to brag around, but I just have to:
==> now, with the above setup, I also made a ve ... |
25-9-2008 at 10:39
by: chief |
H2O2 Restriction
Asians have seaweed for dinner, regularly. That's why it's available in those asian-food-shops, ever ... |
24-9-2008 at 01:01
by: chief |
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