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Girl arrested for chemistry experiment, charges dropped, "October Sky" guy gives her a scholarship
I see it was Homer Hickham who did it. I read his book (Rocket Boys), it was very interesting.
I ... |
24-5-2013 at 06:45
by: annaandherdad |
Impure ZnCO3?
I did a little googling on the zinc in American pennies, including some web sites from the US Mint. ... |
22-5-2013 at 08:19
by: annaandherdad |
Copper sulfate
Thanks, botonist, having a name for it allowed me to search. I found only three links, all of them ... |
22-5-2013 at 07:11
by: annaandherdad |
Impure ZnCO3?
I don't know. Do you mean, aluminum could explain the gelatinous consistency of the carbonate preci ... |
21-5-2013 at 19:39
by: annaandherdad |
Copper sulfate
A question about crystalization, for anyone: How do you keep crystals from crawling up the side of ... |
21-5-2013 at 17:53
by: annaandherdad |
Copper sulfate
Thanks, I'll try that. As for always adding a saturated solution, a wild card in the case of copper ... |
21-5-2013 at 10:51
by: annaandherdad |
Copper sulfate
[rquote=280727&tid=23963&author=MrHomeScientist]They are gorgeous crystals definitely, I lov ... |
21-5-2013 at 09:54
by: annaandherdad |
Impure ZnCO3?
Hi, OctanitroC, we've been doing something similar lately with American pennies, post 1982. Our ob ... |
20-5-2013 at 12:24
by: annaandherdad |
Geiger Counter
Thanks, everyone. Element, I want it because I may be doing some thorium chemistry, or working with ... |
18-10-2012 at 15:21
by: annaandherdad |
Geiger Counter
Does anyone have any advice on the purchase of a geiger counter? New ones seem to cost $350 or more ... |
17-10-2012 at 15:14
by: annaandherdad |
Radioactive Chemistry
OK, Watson, let me try to state it more carefully. When I worked with radiation (some time ago), th ... |
17-10-2012 at 07:28
by: annaandherdad |
Radioactive Chemistry
I spent some time yesterday looking over the AEC bibliography on literature on radium up to about 19 ... |
16-10-2012 at 06:24
by: annaandherdad |
Zinc Sulfide
When I was a teenager (early 1960's) I had a zinc sulfide scintillator as a part of a lab kit on rad ... |
15-10-2012 at 09:28
by: annaandherdad |
Radioactive Chemistry
Watson, thanks for your ideas on getting the radon out. I, too, have been thinking that it will be ... |
15-10-2012 at 06:48
by: annaandherdad |
Radioactive Chemistry
Yes, I'm looking into getting a Geiger counter. Can't do much without one, but I'm hoping to get so ... |
14-10-2012 at 20:04
by: annaandherdad |
Very low solubility of erbium oxide in mineral acids
I hope this is not a naive comment. A while back I tried dissolving some magnetite, Fe3O4, in HCl. ... |
13-10-2012 at 20:22
by: annaandherdad |
Very low solubility of erbium oxide in mineral acids
[rquote=261302&tid=21663&author=woelen]I just received some erbium oxide (Er2O3), which I pu ... |
13-10-2012 at 18:26
by: annaandherdad |
Radioactive Chemistry
[rquote=262071&tid=20701&author=borrowedlawyer]Remember a garage is not a place for transmut ... |
13-10-2012 at 07:40
by: annaandherdad |
Radioactive Chemistry
[rquote=262028&tid=20701&author=phlogiston]Yes, the radium will co-precipitate with the bari ... |
12-10-2012 at 16:31
by: annaandherdad |
Radon 220 from Thorium
This thread is very interesting. I was trying to research chemistry issues regarding thorium, which ... |
12-10-2012 at 07:46
by: annaandherdad |
Reduction by H2 of CuO, Fe3O4, Fe2O3
blogfast---I recall seeing some posts on this forum with enthaply calculations. Was it you? I taug ... |
24-4-2012 at 20:18
by: annaandherdad |
Reduction by H2 of CuO, Fe3O4, Fe2O3
Thanks for the replies, both of you, I appreciate all the information. watson, if what you say is t ... |
23-4-2012 at 20:46
by: annaandherdad |
Reduction by H2 of CuO, Fe3O4, Fe2O3
Reduction of CuO by H2 is a demo given in introductory chem classes, with videos on youtube etc. Bu ... |
23-4-2012 at 13:48
by: annaandherdad |
Tons of demos and experiments but how to share?
Is there a problem with the copyright on this book? That is, would it be a copyright violation to s ... |
19-4-2012 at 14:42
by: annaandherdad |
Where can I buy Over The Counter Nitric Acid?
[rquote=245072&tid=19635&author=jamit]If you live in the United States you can buy Heavy Dut ... |
12-4-2012 at 08:04
by: annaandherdad |
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