Elite Engineer

what if the device was equipped with motion sensors? wouldnt that aid in hitting moving objects?

1.) For ethanol ---> ethane: -dehydrate the ethanol in sulfuric acid, which will give you ethylene. Then further reduce it by hydrogenation via Platinum catalyst. OR.. just react ethanol with aluminum oxide (under heat) to get ethane, OR react ethanol with sodium hydride to get ethane. 2.) For acetic acid ----> ethane: reduce acetic acid to ethanol using lithium aluminum hydride, and then reducing ethanol the same way from the first step. as far as methane, natural gas is mostly methane gas..about 75%. The gases could be separated but it would far too complex and costly to set up..and not really worth your time.

alcohol burns clean, no soot.

Which was more funnier? What if your favorite movie from both groups?

I was watching the Breakfast Club the other day, and the line where the character Allison says, "...we become our parents, it's inevitable" really stuck with me. Since then I've begun to notice that I share some of the same mannerisms as my father, the same problem-solving strategies, etc..., but am I (and the rest of us) merely playing by the laws of evolution in that I must "act" or "behave" like my previous ancestors to survive? I'm aware that different times and environments produce various evolutionary pressures in different generations which in turn yield different adaptations..but are is there a fundamental "psyche"..or "state of mind" that each generation has embraced to compete against other competitors? (i.e. progeny that display a fierce competitiveness and hostility toward other individuals in the workplace, social events, etc. in order to stay dominant?)

I'm try to make biodiesel..any substitutes for a separatory funnel. I dont want to spend $$...hard on cash right now.

But aren't these revolutions in paint chemistry, cement chemistry, etc, just different applications of chemistry? I know finding a new application of chemistry is technically "discovering" something new, but what about the discoveries that change the whole structure of chemistry. If all I have to look forward is just a new Suzuki reaction, where's the fun in that. A couple years ago, quantum physicists may have sent a proton (right?) faster than the speed of light, and the God particle was discovered just last year or so..this is amazing stuff. I majored in chemistry back in college because I loved the changing and opposing theories, and how it was always moving. I fear chemistry will just become a sorta of pseudo-culinary , with an occasional new discovery of making the cake rise a bit more.. -sorry if I just repeated myself. ~ee This is what I'm talking about.

I'm not too keen on my history of chemistry, so correct me where I'm wrong.. It seems all the major discoveries in chemistry happened in the 19th, and early to mid 20th century. (i.e. Avogardros number, molecular orbital theory, Grignard reagents, etc.). Im not update to date on the current discoveries made in the field of chemistry, but it seems as though all the big, fun discoveries are gone....are they? I get jealous of reading the physics threads. There's always some kind of new development about a new particle or a change in a theory. It looks like quantum physics is till a baby, and chemistry is an old geezer. I know every once in a while some chemist(s) receives a nobel prize for creating a more efficient synthesis of some industrial product..but is this what chemistry has come too? Increasing yields of products, and improving precision? Are all the Rutherford, and Millikan-like discoveries all gone? ~EE

Is this solely on Kekule, or the general history o chemistry? I'm having a hard time finding the book

How were chemists such as Keklue able to comprehend and illustrate the structure of benzene without IR or NMR analysis? How did any chemist for that matter figure out chemical structures. Any books on this topic would be appreciated, it really interests me! ~ee

I know why O-O bonds in peroxides, and other bonds are reactive in a redox reaction, but why are C-H bonds able to combust in a redox reaction? It seems C-H bonds are relatively stable. Why does methane, ethane, propane, etc. react with combustion? ~ee

-women dont have to find a succesful, dominant male to support them or a family... they can provide for themsevles. -premarital pregnancy has less taboo than in prior generations. -contraceptives are more and more common. what will be the result of the progeny of the coming generations since there is less pressure of selective mating forces and sexual selection between men and women? Isn't it basically recessives mating with dominants at random, instead of dominants mating with dominants, and recessive with recessive? Is this in theory random mating gone mad?..depleting homogenous genes? Im at best a laymen when it comes to evolution, so please give me your thoughts. ~EE

but wouldn't their traits of tolerating harsh environments place them before bacteria. In fact a lost ancestor connecting the two would sound more logical if it were archea- *ancestor*- bacteria. Maybe the ancestor would have had traits less tolerant of high temperature and acidic environments than the archea, and more similar to bacteria. I guess what Im trying to say is, it doesnt make sense to have bacteria, a species that can tolerate regular environmental conditions come before a species that can tolerate very harsh conditions. I think you said archea came before bacteria: http://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Phylogenetic_tree.svg/450px-Phylogenetic_tree.svg.png

Since some Archea ar known to be hyperthermophiles, acidophiles, and halophiles, why are they placed AFTER bacteria in the evolutionary tree. Wouldn't these extreme climate tolerance characteristics allow them to live in an earlier Earth environment than bacteria? (i.e. high heat, acid environments).

There are alot of intelligent people on this forum, and I see that some have PhD's. Are any of you PhD's doing any really cool ahead of time research? Please share!

so did I just waste my money on a two-bit distillation kit? BTW Knumbnuts, thank you for answering my question!

so are you saying the most efficient fuel is relative to its way of production is ethanol when produced by algae?

Correct, I do use rubber stoppers, however wouldn't the manufacturer make the rubber so it wouldn't react with any substances being distilled?..I really don't know. Also, the distilled propanol is clear and appears to be unaffected by any potential radical inhibitor.

Here's the distilling kit I used to distill the isopropyl alcohol: -The flask on the left contains green, murky material that was separated from the propanol. The middle, smaller flask is the distilled propanol. I measured out 80 mL of non-distilled propanol. The bottle of isopropyl is on the far right, contains 70% propanol, and 30% water...you can't read it on the label but it does say that. It was purchased at Walgreens. ~EE

I didn't know this, otherwise I would have bought that instead. I thought there was only 70% sold commercially, and 99.99% only for industrial use. I'll be sure to get that next time. In relation to the OP...any last thoughts on what the green murky solution is? Just want to make sure I distilled this properly.

i ve done some testing on this murky, light green liquid i obtained from distilling isopropyl alcohol. It has a pH of about 7, it soluble in water and other polar solvents, insoluble in nonpolar solvents, does not react with any bases it comes in contact, and same with acids. When mixed with ethanol, the green, murky layer sinks to the bottom, and the ethanol rises to the top so it is somewhat more dense than ethanol. Any idea anyone? I i distilled it once with an alcohol burner, and distilled a different sample with boiling water and received the same results. ~ee

When do you believe ethanol will be the main fuel used instead of gasoline? Yes there are land issues, and its not as efficient, but when will it come to the point where either A) Pollution, Global Warming gets too much or B) We essentially "run out" of ethanol. I know this is mainly based on the consumer demand of ethanol as a fuel...so..when will PEOPLE, (i.e. consumers) want to start filling up with ethanol fuel? ~ee

Honestly, do what I did. I'm a biochemist. In high school I barely got B's, mostly C's and D's in most of my classes, but I still loved science. After graduation, I took a handful of chemistry, and physics classes at a local community college, I said to myself, "If I can't muster through these courses in a community college, I wont be able to get through a 4 year university"..well it turns out I was able to muster through those classes with a modest 3.75 gpa, and got into the university I had always dreamed of, now I'm a biochemist working in a research lab! Start small then get big...gain momentum before you strike. ~ee

haha, sorry I was getting frustrated. I think Rajnish may be a troll

how is Ranjish a senior member?