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The Decline of Science and Technology in America
BBC article:
http://news.bbc.co.uk/1/hi/magazine/4172504.stm
Subsequent Slashdot discussion:
ht ... |
24-8-2005 at 01:17
by: Quince |
DIY glassware
Got a new quote: $298 CAD = $245 USD. This includeds main body with side arm and plug and 4-mm bore ... |
22-8-2005 at 12:34
by: Quince |
DIY heating mantle
My mantle
~~~~~~~
Materials:
-- old toaster, at least 800 W
-- clay from art shop that c ... |
21-8-2005 at 20:48
by: Quince |
Picric acid: different instructions
I got my replacement thermometer a few days ago. I noticed it had a small gap in the mercury column ... |
21-8-2005 at 00:32
by: Quince |
H2SO4
Will mineral wool (the kind used to insulate the walls of houses) be OK as a filter? I'm think ... |
20-8-2005 at 21:32
by: Quince |
H2SO4
Well, I could do reduced pressure, but the issue is how long it takes to reach temperature.
I don ... |
20-8-2005 at 21:08
by: Quince |
DIY glassware
Oops, I mean I need to seal the bulb with it containing metal samples in vacuum for high heat treatm ... |
20-8-2005 at 20:57
by: Quince |
H2SO4
Has anyone here actually tried distillation of H2SO4 from drain cleaner? Would that remove the buff ... |
19-8-2005 at 23:53
by: Quince |
DIY glassware
Got a quote from one sci.glassblower. Canadian $400 = US $330. That's only US $100 cheaper th ... |
19-8-2005 at 16:30
by: Quince |
DIY X-ray crystallography
It was a joke. I love that pussy. |
18-8-2005 at 15:44
by: Quince |
DIY glassware
I also need to seal off a quartz glass bulb. The problem is that the softening point is about 1700* ... |
17-8-2005 at 22:28
by: Quince |
DIY glassware
If you're getting carbon deposits, you're probably not using enough air, or holding the pi ... |
17-8-2005 at 21:25
by: Quince |
DIY glassware
Hey, maybe we should do an interest check for a group order, if someone can locate a cheap glassblow ... |
17-8-2005 at 15:12
by: Quince |
DIY glassware
Well, the chemistry department guy never replied. He must have simply reported me to the cops or so ... |
17-8-2005 at 13:58
by: Quince |
Garden sulfur?
What about other solvents that may be more available? It's supposed to be slightly soluble in ... |
16-8-2005 at 23:57
by: Quince |
Garden sulfur?
Here they are selling "garden sulfur" as fungicide. Can I assume the stuff is reasonably ... |
16-8-2005 at 23:01
by: Quince |
DIY glassware
[quote]My neighbor...infant electrolyte....He drinks a couple everyday[/quote]
Why does your neighb ... |
16-8-2005 at 04:25
by: Quince |
DIY glassware
Any glassblowers here? Would it be possible to DIY a Gregar extractor?
BTW, where can I buy for ... |
14-8-2005 at 23:26
by: Quince |
Picric acid: different instructions
Well, just at the end of nitration, my thermometer broke and the mercury got mixed with everything. ... |
14-8-2005 at 22:57
by: Quince |
DIY X-ray crystallography
Well, as to what crystals to use, I want to be able to run on the various products of my experiments ... |
13-8-2005 at 19:05
by: Quince |
DIY X-ray crystallography
I'm putting together an X-ray machine to do tomography of small objects; my tube is a medical o ... |
13-8-2005 at 01:09
by: Quince |
Picric acid: different instructions
Hi, the cheapest ASA here contains propylene glycol. When looking up solubility, it dissolves in ac ... |
12-8-2005 at 23:37
by: Quince |
Picric acid: different instructions
I feel fine now. From what I read, medication is supportive only, at most steroids are given. I th ... |
29-7-2005 at 22:03
by: Quince |
Accident report
Well, I had my first runaway nitration. I had the NaNO3 in one beaker, and the ASA in another. Sin ... |
28-7-2005 at 20:19
by: Quince |
Picric acid: different instructions
The patent was useful for the solubility data (ASA/acetone w/w 0.62 @ 55*C, 0.22 @ 10*C).
The metho ... |
21-7-2005 at 22:55
by: Quince |
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