Consumption is also immediately production, just as in nature the consumption of the elements and chemical substances is the production of the plant.
The nature of the chemical bond is the problem at the heart of all chemistry.
Although the problem of transmuting chemical elements into each other is much older than a satisfactory definition of the very concept of chemical element, it is well known that the first and most important step towards its solution was made only nineteen years ago by the late Lord Rutherford, who started the method of the nuclear bombardments.Enrico Fermi
Mr. Hussein's dogged insistence on pursuing his nuclear ambitions, along with what defectors described in interviews as Iraq's push to improve and expand Baghdad's chemical and biological arsenals, have brought Iraq and the United States to the brink of war.
We may, I believe, anticipate that the chemist of the future who is interested in the structure of proteins, nucleic acids, polysaccharides, and other complex substances with high molecular weight will come to rely upon a new structural chemistry, involving precise geometrical relationships among the atoms in the molecules and the rigorous application of the new structural principles, and that great progress will be made, through this technique, in the attack, by chemical methods, on the problems of biology and medicine.linus pauling
Only when I began studying chemical engineering at Oregon Agricultural College did I realize that I myself might discover something new about the nature of the world.linus pauling
Radioactivity is shown to be accompanied by chemical changes in which new types of matter are being continually produced. ... The conclusion is drawn that these chemical changes must be sub-atomic in character.ernest rutherford
Any attempt to reduce the complex properties of biological organisms or of nervous systems or of human brains to simple physical and chemical systems is foolish.kenneth boulding
America has shown we are serious about removing the threat of weapons of mass destruction."..."We now know that Saddam Hussein had the capacity to produce weapons of mass destruction.... We know he had the necessary infrastructure because we found the labs and the dual-use facilities that could be used for these chemical and biological agents. We know that he was developing the delivery systems ballistic missiles that had been prohibited by the United Nations.
The Soviet Union has long been proposing to outlaw chemical weapons, to remove them from the arsenals of states. We are prepared for resolution of this problem either on a global basis or piece by piece. As one of the first steps the USSR and the other socialist countries proposed in January 1984 that agreement be reached on ridding Europe of all types of chemical weapons.konstantin chernenko
The underlying reason for convergence seems to be that all organisms are under constant scrutiny of natural selection and are also subject to the constraints of the physical and chemical factors that severely limit the action of all inhabitants of the biosphere. Put simply, convergence shows that in a real world not all things are possible.simon conway morris
We may lay it down as an incontestible axiom, that, in all the operations of art and nature, nothing is created; an equal quantity of matter exists both before and after the experiment; the quality and quantity of the elements remain precisely the same; and nothing takes place beyond changes and modifications in the combination of these elements. Upon this principle the whole art of performing chemical experiments depends: We must always suppose an exact equality between the elements of the body examined and those of the products of its analysis.antoine lavoisier
Interface, of the resonant interval as 'where the action is', whether chemical, psychic or social, involves touch.Marshall McLuhan
I figure I've done what I could do, more or less, and now I'm going back to being a chemical; all we are is a lot of talking nitrogen, you know...Arthur Miller
Too often, the pastoralist blames the weeds and seeks a chemical rather than a management solution; too seldom do we find an approach combining the sensible utilisation of grasshoppers and grubs as a valuable dried-protein supplement for fish or food pellets, and a combination of soil conditioning, slashing, and de-stocking or re-seeding to restore species balance.bill mollison
It can scarcely be denied that the fundamental phenomena which first led mankind into chemical inquiries are those of combustion.
Now we know that the intricate DNA genetic code makes it possible for the individual to inherit not only simple physical characteristics, such as size, shape and chemical makeup, but also a whole set of propensities for particular social behavior which goes with a given physiology.
When finally interpreted, the genetic messages encoded within our DNA molecules will provide the ultimate answers to the chemical underpinnings of human existence.
Something is wrong with the system when our children, our students, struggling peacefully to have their voices heard, are answered by the spray of chemical weapons and the sting of a baton
"Cellular pathology is not an end if one cannot see any alteration in the cell. Chemistry brings the clarification of living processes nearer than does anatomy. Each anatomical change must have been preceded by a chemical one."
The nature of the chemical bond is the problem at the heart of all chemistry.
We may, I believe, anticipate that the chemist of the future who is interested in the structure of proteins, nucleic acids, polysaccharides, and other complex substances with high molecular weight will come to rely upon a new structural chemistry, involving precise geometrical relationships among the atoms in the molecules and the rigorous application of the new structural principles, and that great progress will be made, through this technique, in the attack, by chemical methods, on the problems of biology and medicine.
The most essential example of the theory of self-organisation in chemistry is the theory of non-linear, non-equilibrium thermodynamics of chemical reactions presented by Prigogine and his co-workers.
Liberal Arts may ultimately prove to be the most relevant learning model... People trained in the Liberal Arts learn to tolerate ambiguity and to bring order out of apparent confusion. They have the kind of sideways thinking and cross-classifying habit of mind that comes from learning, among other things, the many different ways of looking at literary works, social systems, chemical processes or languages.
What is found in biology is mechanisms, mechanisms built with chemical components and that are often modified by other, later, mechanisms added to the earlier ones. While Occam's razor is a useful tool in the physical sciences, it can be a very dangerous implement in biology.
There is no question that Iraq possesses biological and chemical weapons and that he seeks to acquire additional weapons of mass destruction, including nuclear weapons. That is not in debate. I also agree with President Bush that Saddam Hussein is a threat to peace and must be disarmed, to quote President Bush directly.
[I]f you allow someone like Saddam Hussein to get nuclear weapons, ballistic missiles, chemical weapons, biological weapons, how many people is he going to kill with such weapons? He's already demonstrated a willingness to use these weapons; he poison gassed his own people. He used poison gas and other weapons of mass destruction against his neighbors. This man has no compunctions about killing lots and lots of people.
We know that [Saddam] has stored away secret supplies of biological weapons and chemical weapons throughout his Country. We have no evidence, however, that he has shared any of those weapons with terrorist groups. Moreover, if we quickly succeed in a war against the weakened and depleted fourth rate military of Iraq and then quickly abandon that nation as President Bush has abandoned Afghanistan after quickly defeating a fifth rate military there, the resulting chaos could easily pose a far greater danger to the United States than we presently face from Saddam.