jdurg

I cannot forget Enrico Fermi and Glenn Seaborg. Their work on the heavy elements and radioactive materials really changed the world forever. The research they did really opened up our eyes in regards to radioactivity and the world of the atom. While many will argue that it's their fault there's all the nuclear weapons in the world, many people forget the good things that have come from their discoveries.

When I get some free time I'll try and upload a diagram that could help out. With hydrogen, it probably would not work as well since the hydrogen is quite flammable and may have a tendency to ignite when it comes in contact with the flame. You'd probably need to use some other heating method and do it in an atmosphere completely free of oxygen in order to prevent the hydrogen from burning. With oxygen and nitrogen, that should work just fine. (Though you'll never really be 100% sure that it's the nitrogen or oxygen in there since they are transparent gases).

Actually, warmer water allows LESS gas to dissolve. Have you ever wondered why you keep a bottle of soda inside the fridge? It's because the colder water allows more gas to dissolve into the liquid and keeps it carbonated longer. When the temperature is warmer, the gas readily escapes the solution. (If gases dissolved more readily in warmer water, it would be damned near impossible to degas liquids).

I know that normal ping pong balls have some small amount of butane in them, I believe. (The only reason I know this is because while in college we lit a whole bunch of ping-pong balls on fire, and a nice clear, blue-flame came jetting out from an open hole we created in the ping-pong ball).

Let's see..... 1): Cutting up some Habaneros, forgetting to wash my hands, then scratching my balls and my eyes within a matter of seconds. 2): Tried to make chlorine gas and didn't think the reaction was working, so I opened up the reaction vessel and put my nose right up to it and inhaled instead of waving the gas towards my nose like you're supposed to. To sum it up, the reaction was working just fine. 3): Came home from a bar one night REALLY drunk and a roommate dared me to punch myself in the nards for a few packs of cigarettes and a nickel-bag of herb. I punched myself so hard I was peeing blood for a few days. (As a side note, the cigs and herb were NOT worth it). 4): Put my thumb in a beaker of concentrated H2SO4 because I mistook it for water. 5): Bluffed that I had pocket aces when there was an ace on the board. (Texas Hold'Em). The person I was bluffing against actually had pocket aces, however. heh. 6): Ate lunch at McDonalds. ;-)

Entropy is also more commonly known as a measurement of 'disorder' in a system. A higher entropy means a higher 'disorder'.

Yeah, my first attempt at making chlorine gas didn't seem to be working, so I opened up my reaction vessel and got a nice noseful of Cl2 gas. It burned for a little while and I coughed a little bit, but that was really the extent of it. For collecting chlorine gas, the best way to do it is to have the outlet from your reaction going right into the test tube/ampoule that you are collecting it in. (It is also important to make sure that it has been cleaned by running the Cl2 through cool water and then dried by running it through anhydrous NaHCO3). What you will do is generate enough chlorine gas so that your ampoule is overflowing. It's easy to see when you've reached this point if your tube is in front of a white piece of cardboard since the Chlorine will be green in color and easy to see that it's flowing out of the tube. In a separate area, what you'll want to do is set up three welding torches. Set them up so that the three flames converge in one area. This is where the tube will be melted shut. (You will also need two sets of tongs to hold the tube in two places). With the flame set up for sealing the glass shut, you'll need to go back to your overflowing test tube of Chlorine gas with some Teflon Tape. Cl2 is much denser than air, so most of it will stick around in the tube unless you turn it upside down. Wrapping the open end in Teflon tape so that the opening is covered will keep the vast majority of it in there, but not make it airtight. At this point, using one of the tongs you want to grab the tube near the bottom. Now move this tube into the area where the three flames converge. Using the other tongs, quickly grab some glass near the top of the tube and begin to pull upwards a little bit. The area in the flame should be melting by now, and by pulling upwards you'll cause it to melt shut. While it's still molten, you can use the tongs to "flatten" and smooth out the melted portion of the tube. Your chlorine gas will now be locked into the tube and you'll still be able to see the nice pale-green color of it.

Generally speaking, however, glass has no crystal structure. It is an amorphous solid and has no set melting point. Instead, it just softens and then melts. Now crystal glassware, however, does have a crystal structure and that will melt at a certain point and crack at a certain point. You're more in danger of glass cracking if you take it from a hot environment into a cold environment.

Actually, in an oxyacetylene torch the acetylene is only there to heat up the metal. When you turn the oxygen on, you are supposed to turn the acetylene off. The high heat and the excess of oxygen actually cuts right through the metal as the metal is instantly oxidized.

Nope. You cannot get codeine OTC here in the United States. It is illegal to obtain an opium based drug in the USA without a prescription.

You're a little off there Mendelejev. H1 has ZERO neutrons. H2 has one neutron, and H3 has 2 neutrons. H1 (Protium) is the commonly encounted isotope of hydrogen. H2 (Deuterium) is known as 'heavy hydrogen' since water made from deuterium is slightly denser than water made with normal protium. H3 (tritium) is a radioactive isotope of hydrogen which decays via beta emission and has a half-life of about 12 years. It is used in those little 'traser' gadgets and in the exit signs in hospitals and large buildings. (Since if the power goes out, the glow caused by the beta emissions hitting a phosphorescent coating will light the way). There is another isotope of hydrogen containing 3 neutrons, but it has a fleetingly small half-life and is only a lab curiosity.

One thing is for certain is that after seeing EP3 I REALLY wanted to go and watch EP4-6 again. (It was also neat seeing the Millenium Falcon make a cameo appearance). But the force lightning was super sweet in how they did that. Some of the dialogue was craptacular, however, and I cannot deny that. Every time Samuel L. Jackson said a line, I was waiting for him to follow it up with 'mother ****er'. lol.

Alright, you may need to know some Texas Hold'Em poker terminology to get these jokes, but I found them pretty funny. With the rise of poker as a popular game to play these days, the makers of Cialis (an Erectile Dysfunction Drug) have begun to sponsor poker tournaments and are coming up with some 'not so kosher' taglines. "No more limping in with Cialis". "If you take Cialis, you no longer have to worry about a bad flop". "Get pocket rockets every time with Cialis". "With Cialis, you'll want everyone to suck out on you". "Make a strong pair with Cialis".

What I liked the best, even though it wasn't really a big shock, was [hide]the transformation from Chancellor Palpatine into The Emporer. Even though we all knew who he was, the revelation was well done and his physical transformation was spectacular.[/hide]

From what I can remember, the reaction between sucrose and sodium hydroxide should leave you with sodium sucrate which is basically a sugar salt (And since it's an ionic salt it probably wouldn't have that 'sweet' taste). I have heard that sucrates have a gelatin like property to them when mixed with water, so from your descriptions that sounds fairly likely.

I caught it yesterday and thought that it was great. It was nice and dark and tied together every loose end there was. After seeing Episode 3, the original trilogy will really be just a bit different to me. I didn't see any spoilers, or even trailers, for this movie so I wasn't tainted with prior information. Still, there were no real surprises since I've seen all the others and kind of know what to expect. Even then, the part of the movie I liked the best was the creation of the Emporer. That was VERY well done and nice to see. After seeing EP3, I also think that Episodes 1 and 2 almost HAD to suck donkey balls in order for EP3 to come out as well as it did. EP3 needed to have all the build up that EP1 and 2 provided in order to accomplish everything it wanted to in a reasonable amount of time. (Then again, I also think that people butcher EP1 and 2 just out of peer pressure because they don't want to admit that they like them. It's "not cool" to think that the first two movies were good). 5614; You've actually heard bad things about the new movie? I'd like to see those reviews because every single review I have read or seen says that this new movie is one of the best ones. Even those who basically sent death threats to George Lucas after the first two are saying that the 3rd one was a great movie.

I would definitely not paint my testicles with it. That'd be a bad idea.

Look at the formula for acetic acid. CH3-COOH. The CH3-C means that there is a two carbon chain in the structure which is what an ethyl group is; a two carbon chain. Methanoic acid is HCOOH. It's called methanoic because it has the one carbon (methyl) backbone to it. Propanoic acid is CH3-CH2-COOH, butanoic acid is CH3-CH2-CH2-COOH. The methyl, ethyl, propyl designations have to do with the size of the carbon backbone in the molecule. If it has a two carbon backbone, it's ethyl. Three carbon and it's propyl. Etc. etc.

Ethanoic means that it contains an ethyl group. Acetic acid is another name for ethanoic acid.

Neither is better. Each of them has strengths and weaknesses. You really can't go wrong with either of 'em. However, the real big and important computers wouldn't touch any of them with a ten foot pole. Then again, those types of computers are a wee bit different than the ones we typically use.

Well I had a routine doctor's appointment today and brought up the food poisoning incident of last week. After describing the symptoms to my doctor, he said that it could not be Salmonella or E-Coli poisoning. Those types of food poisonings are bacterial infections which take some time for onset and generally don't show symptoms until about 16 hours after consumption. The fact that I had no fever and had the symptoms come on only mere hours after eating the food ruled out a bacterial infection. He said that it was most likely a staphylococcus or clostridium contamination of the food, because those types of food poisonings occur from toxins and not bacteria. (The bacteria really don't proliferate. They just produce toxins which make you very ill and would coincide with the weakness, lightheadedness, passing out, and vision fluctuations that I experienced). That type of food poisoning generally occurs when people fail to wash their hands and contaminate clean surfaces.

There's also a chance that they have a lead backing behind the gold that you see as it would be VERY expensive to actually have a thick, pure gold backing. (Though depending on the watch that's not at all unlikely).

If you measured through glass, then no alpha, a bit of beta, and a helluva lot of gamma will get through. (Alpha particles are stopped by a few inches of air or a sheet of paper; beta particles, depending on the energy, can get through a thin piece of foil, some glass, and quite the distance in air; gamma rays can plow right through multi-feet thick concrete and is only stopped by VERY dense metals like lead, tungsten, etc). Radium is INCREDIBLY radioactive, to say the least, so it doesn't surprise me at all that you are getting readings at that level.

Doesn't surprise me at all. H2O2 can and will decompose quite quickly and quite violently if properly provoked. I've had small little amounts of it boil over onto the lab top when just a little bit of a contaminant got into there, for example.

Heh. I first took a look at the 'Your Warnings' page and saw the entire list of possible warnings there and wondered 'What the heck did I do?!!!!!' Then I looked at the tiny print which said 'you have zero warnings'. heh. Scared me there for a moment.