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Science Porn
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 RE: Science Porn
May 28, 2015 at 11:01 pm
(This post was last modified: May 29, 2015 at 12:09 am by SteelCurtain.)
(May 20, 2015 at 1:22 am)Neimenovic Wrote: You guys might as well be talking in Vietnamese I had meant to come back to this. Sorry, Vic! So here's how it goes. When you anodize a metal, you pass current through an electrolytic solution with the metal acting as the positive electrode. The negative electrode releases hydrogen, and the surface of the metal starts to accumulate an oxidized layer. At a specific voltage, that oxidized layer is a certain thickness. If you increase the voltage further, the oxidized layer thickens, the wavelength of light that is reflected changes with it (remember Snell's Law), hence the varying color.
"There remain four irreducible objections to religious faith: that it wholly misrepresents the origins of man and the cosmos, that because of this original error it manages to combine the maximum servility with the maximum of solipsism, that it is both the result and the cause of dangerous sexual repression, and that it is ultimately grounded on wish-thinking." ~Christopher Hitchens, god is not Great
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So in short: magic.
 RE: Science Porn
May 29, 2015 at 3:32 pm
(This post was last modified: May 29, 2015 at 3:40 pm by Secular Elf.)
(May 18, 2015 at 5:14 pm)Alex K Wrote: So, the other awesome metal band from the Faroese Islands recorded a live music video in front of the 2015 eclipse Awesome video, love the song! Very nice. Is the language Norwegian? Would be cool to see an English translation. Oxidizing magnesium. I remember I had a science teacher in 7th grade who had a chunk of magnesium in some kind of liquid in a jar. He took a pair of tongs and grabbed a small piece out of the jar. As soon as he took it out and the air contacted it, it burst into flames. I thought that was so damn cool! https://www.youtube.com/watch?v=M7Y-nJ-lE38
"The price of freedom is eternal vigilance."--Thomas Jefferson
That was probably potassium. Magnesium in chunk form is safe to handle. Race cars sometimes have wheel rims made from it.
Magnesium shavings and particles, on the other hand, are EXTREMELY dangerous, especially if already on fire. Nothing will put out the fire, even water will accelerate the combustion once it starts, and the reaction is so violent it releases hydrogen which will explode. Not a fun experience. The granting of a pardon is an imputation of guilt, and the acceptance a confession of it.
Magnesium and Potassium fires are Class D. On ship, the literal firefighting method is "kick it overboard."
"There remain four irreducible objections to religious faith: that it wholly misrepresents the origins of man and the cosmos, that because of this original error it manages to combine the maximum servility with the maximum of solipsism, that it is both the result and the cause of dangerous sexual repression, and that it is ultimately grounded on wish-thinking." ~Christopher Hitchens, god is not Great
PM me your email address to join the Slack chat! I'll give you a taco(or five) if you join! --->There's an app and everything!<--- 
That magic thing was comedy gold. :-)
In this episode of sciency gifs
![[Image: tumblr_mm8ff1e7LA1rahxeso1_500.gif]](https://31.media.tumblr.com/707e18b3d83a0d801eb310f20efb6e66/tumblr_mm8ff1e7LA1rahxeso1_500.gif) ![[Image: tumblr_nfl20dRoGp1tlppcdo1_250.gif]](https://31.media.tumblr.com/01b256db56bca95a01129a6831cb84ff/tumblr_nfl20dRoGp1tlppcdo1_250.gif) ![[Image: giphy.gif]](https://images.weserv.nl/?url=media.giphy.com%2Fmedia%2F13OVbz2Wfdcnn2%2Fgiphy.gif) ^^^ EXPLAIN ^^^  RE: Science Porn
May 31, 2015 at 10:36 am
(This post was last modified: May 31, 2015 at 10:42 am by Alex K.)
(May 29, 2015 at 3:32 pm)Secular Elf Wrote:(May 18, 2015 at 5:14 pm)Alex K Wrote: So, the other awesome metal band from the Faroese Islands recorded a live music video in front of the 2015 eclipse They are Faroese, so I assumed that's the language of the song. The pronunciation just sounds so differently from my favourite Faroese band, TÝR. From what I've seen so far, Faroese is more or less Icelandic with a funny pronunciation. Like icelandic, it is indeed most closely related to Norwegian.
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14, KJV revised edition
I'm guessing it's some sort of endothermic reaction in the material that starts at a certain temperature. So heat = poofy blue stuff.
"There remain four irreducible objections to religious faith: that it wholly misrepresents the origins of man and the cosmos, that because of this original error it manages to combine the maximum servility with the maximum of solipsism, that it is both the result and the cause of dangerous sexual repression, and that it is ultimately grounded on wish-thinking." ~Christopher Hitchens, god is not Great
PM me your email address to join the Slack chat! I'll give you a taco(or five) if you join! --->There's an app and everything!<--- |
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