By Kyle Kirkland
ISBN-10: 0816074402
ISBN-13: 9780816074402
Investigates the learn and discoveries of the explorers and scientists who extended wisdom within the numerous fields inside of chemistry.
Read or Download Chemistry: Notable Research and Discoveries PDF
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Additional resources for Chemistry: Notable Research and Discoveries
Sample text
As scientists probed the nature of particles, they realized that the behavior of small objects does not necessarily mimic larger ones. This discovery opened up new vistas in science as well as technology, including the subject of this chapter—technology on the scale of atoms and molecules. InTroduCTIon People have been thinking about tiny objects for a long time. The ancient Greek philosopher Democritus (ca. ) believed that properties of matter depended on the shapes of small, indivisible bits of matter called atoms.
To get another product, the experiment must plod through the same steps. But in a technique known as combinatorial chemistry, the chemicals are mixed in a parallel fashion, so that many reactions proceed at the same time. 17 1 chemistry As described in the following sidebar, the result is a family of related chemicals, ready to be tested. Combinatorial chemistry produces hundreds or possibly thousands of candidate compounds to screen for the desired properties. One may fit the bill, or come close, in which case it may be further modified and retested.
There are two main design methodologies that researchers are currently pursuing. Both have advantages and disadvantages. One method, Quantum Mechanics The British physicist and mathematician Sir Isaac Newton formulated his laws of motion in the 17th century. These laws predict the course of an object when subjected to various forces, such as a push, pull, or a collision with another object. In Newtonian physics, physicists can predict the motion of an object with any desired degree of accuracy if all the forces acting on it are precisely known.
Chemistry: Notable Research and Discoveries by Kyle Kirkland
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