Discussion in 'Off-topic Zone' started by Sam I Am, Oct 19, 2011.
this is all sorts of awesome!
here are a few nice video game related pics i found on IGN
Man fits a 2700hp jet to the back of his Ford F-150 truck. Awesomeness ensues.
Best thread ever in the whole wide world!!
Oh, chemistry is a lot more exciting when you learn how to put something like this little innocuous looking guy together. If you do figure out how to make it (which you can do with the stuff you can pick up at almost ANY home improvement store) be sure to call the FBI. They'll wanna chat with you.
Any guesses on what it might be?
im pretty sure most of us learned TNT in 10th grade chem
No fair. Too quick.
Shoulda done something a little tougher.
I'm not too knowledgeable about chemistry. By the looks of that structure, I'm not even sure exactly how to read it. It doesn't look to have a normal layout like a other chemical structures.
That can't be the normal way to describe it's structure. What is it?
looks like a steroid
EDIT: i looked it up, wasn't even close.
Can you hear me now?
Microsoft Joins SOPA/PIPA Protest, Windows Will Go [strike]Black[/strike] Blue Today
WARNING: if you are using a black avatar today to protest against SOPA you might get into some copyright trouble from Lars
Old photos colorized.
That's the most common way to show a repeat unit in any polymer chain. The subscript "n" on the right side indicates an arbitrary number of repeat units. Considering the number of polymers in the world, it's the most common type of structural depiction in chemistry, albiet most folks aren't exposed to the graphics in such a manner.
To explain it a little further, that one unit is a single piece in a chain that connects to another just like it. Continual repeating until the chemical formation process is stopped by any number of methods. HOWEVER what makes this feller strong is that the oxygen coming off of the double sticks (double bonded) attaches covalently to the Hydrogen coming off of the repeat unit. So you get sheets instead of spaghetti. Sheets is a misnomer because they only grow in that plane for a short distance before the manufacturing process limits it.
The structure I showed is produced in a neat fashion. If you've ever seen water rest on top of oil in a beaker or clear cup, you know there is a boundary between them. That's refereed to as the interfacial boundary layer. This polymer is formed by pulling a piece of the lower solution through the upper solution which catalyzes the reaction at the boundary layer. You end up with a "wet spun" process for creating fibers. The diameter of the fibers is determined by the speed at which you pull from the boundary layer.
Ladies and gentlemen, soldiers, police officers, and motorcycle riders, I present to you the polymer of the hour, Kevlar.
Worth noting that the photographer who took that photo won the Pulitzer Prize, and committed suicide later for not stopping to help her despite an aid station being within a few kilometers.
As a somewhat nasty form of help for friends of mine who are having issues with boisterous kids not wanting to eat, I forward that shot to them, tell them that she died from not having anything to eat, and if that doesn't work by itself, tell them to pinch their kids and wonder how much it hurt when the bird started to bite the little girl. I've had more than a few mothers tell me it works immediately and the effect lasts.
where you a chem major? i had my first college chem class today, we learned about graphene, pretty bad *** stuff