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Author: Subject: Pretty Pictures (1)
bfesser
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[*] posted on 30-7-2013 at 13:56


<strong>Zwitteron</strong>, I fixed the image/link for you&mdash;I hope you don't mind. Also, I'd recommend polishing the surface by progressing through sandpaper to the finest grit you can find, then finishing off with a polishing compound and a buffing wheel (if you want a mirror finish, that is). That's how I polished my favorite lock picks.



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Zwitteron
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[*] posted on 30-7-2013 at 14:36


Yes, i was trying to polish it but my sand paper was to coarse... I tryied to polish it with fine silica gel but with only little effect.
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[*] posted on 31-7-2013 at 03:54


Copper on cell phones. I like it. This is a good way to keep the numbers of bacteria on the low side.



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Mailinmypocket
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[*] posted on 31-7-2013 at 10:18


Some thymol- nice icey looking clumps that smell peculiar, something like listerine.


image.jpg - 80kB
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watson.fawkes
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[*] posted on 31-7-2013 at 10:28


Quote: Originally posted by Mailinmypocket  
something like listerine.
Since thymol is one of the active ingredients in Listerine, it's not all that surprising.
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Mailinmypocket
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[*] posted on 31-7-2013 at 10:52


I know, when my roommate uses Listerine and speaks to me shortly after he always acts puzzled when I say he has thymol breath :D

*edit* regarding the fluorescence of the calcite samples pictured above, nada. I tried with both a blacklight and a shortwave (256nm) UV lamp and neither produced a noticeable fluorescence. These things are like blocks of ice.

[Edited on 31-7-2013 by Mailinmypocket]
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smaerd
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[*] posted on 3-8-2013 at 18:21


Nothing particularly special about this. Was just degassing some methanol for HPLC use.

And an NMR being filled with liquid helium

DSCF0027.JPG - 155kBDSCF0010.JPG - 92kB




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[*] posted on 7-8-2013 at 17:54


Solid N2O4 condensing in a dewar condenser with a dry ice/ethanol bath.

IMG193.jpg - 123kBIMG187.jpg - 125kB




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Mailinmypocket
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[*] posted on 8-8-2013 at 16:08


What happens when you mix Tollen's reagent with a Heineken bottle?


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[*] posted on 8-8-2013 at 16:29


I'm not a fan of Heineken, but that's beautiful! You should sell those.



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Lambda-Eyde
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[*] posted on 8-8-2013 at 16:33


I despise industrial pale lagers, but thanks for the idea, MIMP :D



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Mailinmypocket
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[*] posted on 8-8-2013 at 16:54


Oh god! Pulling a Tollen's is the best party favor ever! Making a silver beer/wine/whatever bottle seems to be a hit with lots of people. Rightfully so!- They look really neat!! Other types of bottles make cool effects too, if you don't like them just dissolve the film off with HNO3 and re-start!

**edit** not my favorite either but, ya know.... Beer is beer, silver the f*cker** ;)

[Edited on 9-8-2013 by Mailinmypocket]

[Edited on 9-8-2013 by Mailinmypocket]
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[*] posted on 8-8-2013 at 17:12


heineken was dinner,dance and a movie at one time but that green silver is very cool indeed.
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[*] posted on 8-8-2013 at 17:18


Quote: Originally posted by Mailinmypocket  

**edit** not my favorite either but, ya know.... Beer is beer, silver the f*cker** ;)

Excuse me, but what the heck is that supposed to mean? I must remind you that you're speaking with a connoiseur* of fine beers - a double IPA, citra single hop APA, a west coast style American IPA, an English ESB, a German Weizenbock, a Oud Bruin from Flandern, or an imperial stout loaded with massive amounts of hops, demerara sugar, finely roasted coffee beans, espresso coffee and fermented with an American ale yeast for the primary stage and a Spanish red wine yeast for secondary fermentation, then forgotten in a Scotch whisky barrel from the Lowlands is something very different from a mass-produced, tasteless, bland industrial beer consumed solely for the purpose of intoxication, my good sir! ;)



*I prefer that label over "high-functioning alcoholic"




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[*] posted on 8-8-2013 at 17:31


<a href="viewthread.php?tid=25541">[ahem]</a>



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[*] posted on 11-8-2013 at 07:12


Quote: Originally posted by Lambda-Eyde  

....
*I prefer that label over "high-functioning alcoholic"


I prefer the label "Engineer" haha

I approve of silver beer bottles. To be fair Heineken bottles are green, brown bottles might not show up as well.

Maybe they could use it as a marketing stunt?




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[*] posted on 11-8-2013 at 07:31


Since when are engineers high-functioning? They're just failed scientists. :P The true high-functioning alcoholics are archaeologists and <a href="https://www.youtube.com/watch?v=q29578ZF_7o" target="_blank">geologists</a> <img src="../scipics/_yt.png" /> (there's a long-running dispute over who's more <a href="http://uncyclopedia.wikia.com/wiki/Geologist#Geologists_and_Alcohol" target="_blank">alcoholic</a> <img src="../scipics/_ext.png" />;).

To keep this thread on topic, here are some photos of something interesting I stumbled across in the basement of an antique shop yesterday. Sorry, they're not exactly pretty (poor lighting).

<table><tr><td>IMG_0471.JPG - 594kB</td><td>IMG_0472.JPG - 611kB</td><td>IMG_0474.JPG - 626kB</td></tr><tr><td align="center"><em>Hmm&hellip;</em></td><td align="center"><em>Okay.</em></td><td align="center"><em>Wait, what‽</em></td></a></table>

IMG_0475.JPG - 687kB

One of the other interesting items. It still contained a clear <del>colorless</del> solution and some <del>clear to white</del> crystals settled on the bottom.

[edit] Removed dubious observations&mdash;brown glass.

[Edited on 11.8.13 by bfesser]




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[*] posted on 11-8-2013 at 09:06


Antique sales are really great. Enjoy your CCl4.

I found a really old bottle of formalin at a sale. The methanol was long gone (sealed with a cork!) leaving it 1/3 full of water and 1/3 full of solid paraformaldehyde.




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[*] posted on 11-8-2013 at 09:37


I didn't buy it, <strong>mr.crow</strong>, I just saw it in the shop a few weeks ago and went back yesterday to take photos for you guys. Since the can is pressurized by a propellant, and I don't have one of those aerosol can piercing tools (<a href="http://www.americangasproducts.com/aerosol-can-puncture.htm" target="_blank">example</a> <img src="../scipics/_ext.png" />, depending on the diameter, perhaps a refrigerant can tapper would work), I don't want to mess with it. I also saw some great old pharmacy bottles of boric acid, which I might go back for.

[Edited on 11.8.13 by bfesser]




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[*] posted on 15-8-2013 at 14:27


Zinc plated pennies, thanks to Woelen for the experiment idea!


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[*] posted on 15-8-2013 at 15:13


Those are the nicest Zn-plated pennies I've seen. Have you tried heating one over a Bunsen to turn the surface to brass? Also, could you give some details of your procedure, please?

I feel like I have to post an image any time I reply in this topic, so here's a photo of some radiating <a href="http://en.wikipedia.org/wiki/Tourmaline#Schorl" target="_blank">schorl</a> <img src="../scipics/_wiki.png" /> (tourmaline) crystals I found in the <a href="http://en.wikipedia.org/wiki/Harney_Peak" target="_blank">Harney Peak</a> <img src="../scipics/_wiki.png" /> granite, Custer County, South Dakota.

radiating_schorl.jpg - 598kB

[Edited on 15.8.13 by bfesser]




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[*] posted on 15-8-2013 at 15:23


That's pretty good - how do the crystals themselves look? I have a glossy, although not very crystalline specimen of schorl.



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[*] posted on 15-8-2013 at 15:24


I have never seen anything like that tourmaline before, hopefully you took some samples? Really cool!

The zinc plated penny experiment came from Woelen's site. I used zinc sulfate in my example, but apparently any soluble zinc salt works (I was debating on sulfate, nitrate and chloride- haven't tried the latter two). The experiment was stopped at the zinc stage, I had heard of the "Alchemists Dream" demo where the coins are placed on a hotplate and become brass colored but thought silver was cooler :P

***Oh and this is nicer in person but what the heck, I like adding pictures too. This is some bis-chloro bis-triphenylphosphine nickel which is slowly crystallizing out of the mother liquor. Very glittery, iPhone cameras do no justice :(


image.jpg - 91kBimage.jpg - 88kB

[Edited on 15-8-2013 by Mailinmypocket]
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[*] posted on 15-8-2013 at 16:11


<strong>elementcollector1</strong>, in my experience, the tourmaline component of the Harney Peak granite tends to be heavily fractured perpendicular to the main axis of the crystal (sorry, I don't know the technical terminology yet). Other than that, it's crystalline and shiny, as expected. I have a few loose specimens from other locations in the area, but didn't disturb the outcrop in the photo. I'll post photos if they turn out (still waiting for that geology forum...).

<strong>Mailinmypocket</strong>, I have some similar pennies that I plated about 10 years ago, and after a few years of sitting on a shelf, the surface became brass on it's own. I see that <strong>woelen</strong> observed the same process. If the Zn layer is thick enough, you won't have to worry about this.

[Edited on 16.8.13 by bfesser]




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[*] posted on 15-8-2013 at 17:42


OK, probably not pretty to some, but I like the way my 2nd Chlorate cell electrode assembly came out.

The top contains all of the carbon rod (lantern dry cell anodes) connections, insulated by a generous amount of 100% silicone rubber. The translucent tube contains the anode lead which passes through the cell lid with a good friction fit.

The central rod is stainless in the picture, used to hold everything in place while the sealant cured. Just prior to going into service this was replaced by a Titanium rod.

The Titanium cathode was kept purposefully small in order to discourage excessive reduction reactions on the cathode surface.

DAS

[Edited on 16-8-2013 by Varmint]

8_Anode_Cell.jpg - 187kB

[Edited on 16-8-2013 by Varmint]
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