Through A Narrow Chink: An Ethical Dilemma
.... of synthesizing his product and achieving his goal
that he did not stop to think of the ramifications of his accomplishment. The
ethical dilemma was not explored before hand, and this to me is the great
tragedy of most scientific discovery, since I firmly believe each scientist is
responsible for that which he creates.
Djerassi does confront a few questions of ethics and morality after the
fact.
On page 61, in chapter 6, he reflects on the argument of the use of poor
Mexican and Puertorrican .....
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Tin
.... it with carbon to remove the zinc, copper, bismuth, and iron from
the tin.
Tin had been used for many things but tins use is dropping rapidly although
tin is still used a lot for plating. Plating such things as electical contacts.
Tin is also used as a protective coating. This protective coating can be as
small as 15/1,000,000 of an inch. This protective coating protects against rust
on steel and other metals. A coating of tin also gives a great look to plain old
steel.
Tin cans for food preve .....
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Xenon
.... elements
that have different boiling points. Basic-ally, when a sample is heated, the
faster element leaves first, leaving the second element behind. Krypton was
known to have a boiling point at a temperature that is lower than xenon. So the
scientists could predict that heating the mixture would leave krypton in the
container, while the faster boiling xenon leaving it. After the two scientists
separated krypton and xenon, they identified it as a new element through the
emission spectrum of the gas. .....
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The Water And The Waves
.... the sunlight. We know that the sunlight is
a blend of lights of many colors - as we can prove for ourselves by passing
it through a prism, or even through a jug of water, or as Nature
demonstrates to us when she passes it through the raindrops of a summer
shower and produces a rainbow. We also know that light consists of waves,
and that the different colors of light are produced by waves of different
lengths, red light by long waves and blue light by short waves. The
mixture of waves which consti .....
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UFO Crash Near Roswell, NM
.... neighbor, Dee, found the
remains of the wrecked UFO scattered over a large area. When Brazel drove
Dee back home, he showed some of the material to her parents. They all
agreed the material was unlike anything they had ever seen. On July 6
Brazel drove into town with a few pieces of the wreck. He showed the
material to the Chaves County Sheriff George Wilcox. The sheriff called the
Roswell Army Air Field(AAF) and talked to Major Jesse Marcel, the
intelligence officer. After inspecting Brazel's .....
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Uranium
.... at about 3818
degrees Celsius. Its atomic weight is 238.029 and its atomic number is 92.
Chapter 4
Uses
Uranium several uses, it is used in nuclear weapons and in nuclear
power plants. They used uranium in 1954 for the first nuclear powered
submarine in the U.S.
Chapter 5
History
Uranium was discovered in 1789 in pitchblende by a German chemist
Martin Heinrich Klaproth who named it after the planet Uranus. The
radioactive properties of uranium were first showed in 1896 when a French
physicist .....
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Water Transitions
.... naturally occurring element.
Although seawater has a fairly constant ratio of major elements, salinity
and seawater can fluctuate. Normally, the salinity is thirty-four to
thirty-seven parts per thousand (ppt.), but on a particularly rainy morning,
the salinity may decrease to something as low as thirty-two ppt. (Stuller
29).
The mixing of freshwater and sea water forms a third type of water,
known as brackish water. Brackish water can be found in a variety of
mixing zones such as river deltas, fres .....
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Buoyant Forces
.... to
spill out and be caught in the first cup. After the water had spilled out it
was weighed, which was 8.3g, converted to kg was .0083g. The weight of this
displaced water in Newtons was 0.081423n.
The percentage error with the buoyant force from step one was calculated
using, this resulted, using .114 for Fb and .0813 for Wdisp, a 28.7% error.
After completing this lab, it has become more apparent as to how to
calculate boyant forces and how that information can be used.
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Plants
.... webs
but also modify climates and create and hold down soil, making what would
otherwise be stony, sandy masses habitable for life.
Cell Structure and Function
The tremendous variety of plant species is, in part, a reflection
of the many distinct cell types that make up individual plants. Fundamental
similarities exist among all these cell types, however, and these
similarities indicate the common origin and the interrelationships of the
different plant species. Each individual plant cell is at l .....
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Bacteria And Their Effects
.... causing organisms most are
harmless or even beneficial.Most of bacteria found in soil,water,and air
are eubacteria.Eubacteria produce many of the antibiotics used in medicine.
Bacteria can also be harmful.Some bacteria cause diseases such as
Tuberculosis,Gonorrhea,Typhoid fever,Lyme disease,Gangrene,and
Endocarditis.Some of these diseases are fatal.Bacteria can also cause skin
diseases such as Dermatitis,Leprosy,and Carbuncle.Some bacterial diseases
can be controlled by antibiotics.Some of t .....
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Static Electricity
.... is essential to the understanding of electricity. A third idea
was that if the distance between electric charges is increased, the force
of attraction or repulsion decreases.
All matter is made up of very tiny particles called atoms. Atoms
are made up of even smaller substances called subatomic particles.
Scientific studies have found that some of these subatomic particles are
charged with electricity. The electric charges are made up of two kinds -
positive and negative. The positively charged particles .....
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Pluto
.... from a frigid negative two hundred twenty three to negative two
hundred thirty three degrees Celsius which converts to negative three
hundred sixty nine and negative three hundred eighty nine degrees
farenhiet.Its extremely frigid tempetures are due to its obvious distance
from the sun.Its atmosphere consists of nothing more than methane.Plutos
thin atmosphere also contributes greatly to its extremely low atmospheric
pressure only one hundred times weaker than that of Earth's. Its surface
is made of v .....
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Helium
.... cooled almost to absolute zero at
normal pressure by rapid removal of the vapor above the liquid. At a
temperature slightly above absolute zero, it is transformed into helium II,
also called super fluid helium, a liquid with unique physical properties.
It has no freezing point, and its viscosity is zero; it passes readily
through minute cracks and pores and will even creep up the sides and over
the lip of a container. Helium-3, the lighter helium isotope of mass 3,
which has an even lower boiling point tha .....
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Is There Evidence That Homosexuality Is Biologically Determined?
.... Experiments conducted led to the possible
conclusion that the region Xq28 carries a gene influencing male sexual
orientation. However, there are a few flaws to their interpretation of the
results. Among them are stated in the article. A replication of the
experiment is necessary, the separation of the particular gene has not been
achieved, and the importance of the region has not yet been determined.
Moreover, the supposed gene that influences homosexuality suggests that it
acts indirectly on the .....
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Atoms
.... the primary ambition for scientists after Dalton, to find out
the structure of an atom. In 1897, Joseph John Thomson discovered electrons.
Using a tube, magnets and charged plates, he sent ray particles through
various experiments changing the position of the charged plates. By
changing the plates, he discovered he could also change the point at which
the particles would hit a florescent screen at the end of the tube. He
decided that the ray was made up of particles with a negative charge. He
nam .....
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