|
» Science Essays and Papers
Atmospheric Circulation And More
<view this essay>.... will
make the air cool an fall. Air gets heated at the equator because of the
inter tropical convergence zone and rises to the poles. There the air is
cooled and it floats back down to the equator where the process is
repeated. Another major contributing factor to the circulation of the air
is due to the subtropical highs. These highs like the ITCZ migrate during
the different seasons.
The idealized belt model is a great representation of the general
circulation of the atmosphere. The equatorial belt of variable winds and
calms ranges from 5 degrees north to 5 degrees south. This wind belt is
characterized by weak winds a .....
Number of words: 685 | Number of pages: 3 |
|
Nicolaus Copernicus
<view this essay>.... was inspired to further his education by
going to the University of Bologna in Italy. While there, he roomed with
Domenico Maria de Novara, the mathematics professor. In 1500, Copernicus
lectured in Rome and in the next year, obtained permission to study medicine at
Padua. Before returning to Poland, he received a doctorate in canon law from the
University of Ferrara.
Copernicus lived with his uncle in his bishopric palace. While he stayed
there he published his first book which was a translation of letters written by
the 7th century writer, Theophylactus of Simocatta. After that he wrote an
astronomical discourse that laid the foundation of his heliocentric .....
Number of words: 653 | Number of pages: 3 |
|
Nuclear / Particle Physics Effects Of The Atomic Bombs On Hiroshima And Nagasaki
<view this essay>.... power from an atom. This power comes when the matter inside of the atoms is transformed into energy. The process by which this is done is known as fission. The only two atoms suitable for fissioning are the uranium isotope U-235 and the plutonium isotope Pu-239 (Outlaw Labs). Fission occurs when a neutron, a subatomic particle with no electrical charge, strikes the nucleus of one of these isotopes and causes it to split apart. When the nucleus is split, a large amount of energy is produced, and more free neutrons are also released. These neutrons then in turn strike other atoms, which causes more energy to be released. If this process is repeated, a self- .....
Number of words: 2095 | Number of pages: 8 |
|
The Water And The Waves
<view this essay>.... but
scatters the short ripples.
We have been watching a sort of working model of the way in which sunlight
struggles through the earth's atmosphere. Between us on earth and outer
space the atmosphere interposes innumerable obstacles in the form of
molecules of air, tiny droplets of water, and small particles of dust.
These are represented by the columns of the pier.
The waves of the sea represent 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 .....
Number of words: 351 | Number of pages: 2 |
|
The Destruction Of Red Tides
<view this essay>.... the tiny pigmented plants grow to a great abundance. The term red tide is misleading in the name. "Red tides are only occasionally red, also appearing as orange, brown, and even green. And they never occur literally as tides, which are the rises and falls of the sea." (New York Times: Aug. 27,1997) Some cases of red tides do not show any change in the color of the water at all. This makes a red tide very hard to predict or find.
Red tides often occur when fresh water runoff creates a stratified surface layer above colder nutrient-rich waters. "heavy rains might have helped the red tides develop by pouring fresh water and nutrients into surrounding sea wa .....
Number of words: 885 | Number of pages: 4 |
|
Stars
<view this essay>.... Deneb is
intrinsically very bright to make this list from its greater distance. Rigel, of
nearly the same absolute magnitude, but closer, stands even higher in the list.
Note that most of these distances are really nearby, on a cosmic scale, and that
they are generally uncertain by at least 20%. All stars are variable to some
extent; those which are visibly variable are marked with a "v".
What are apparent and absolute magnitudes? Apparent is how bright the appear to
us in the sky. The scale is somewhat arbitrary, as explained above, but a
magnitude difference of 5 has been set to exactly a factor of 100 in intensity.
Absolute magnitudes are how brigh .....
Number of words: 817 | Number of pages: 3 |
|
Phosphates In Water Pollution
<view this essay>.... in the first step in oxidation of glucose in the body.
Primary calcium phosphate is an ingredient of plant fertilizer.
Phosphates have caused increasing attention recently. The focus is on
the environmentally harmful effects in household detergents. Wastewater, from
laundering agents, contains phosphates, which are said to be a water pollutant.
Most laundry detergents contain approximately 35% to 75% sodium
triphosphate (Na5P3O10), which serves two purposes. Providing an alkaline
solution (pH 9.0 to 10.5) is necessary for effective cleansing and also to tie
up calcium and magnesium ions found in natural waters and prevent them from
interfering with the cl .....
Number of words: 791 | Number of pages: 3 |
|
How Earthquakes Are Caused
<view this essay>.... is subducted
into the mantle, with almost the same effects.
Most islands and island chains are results of volcanic activity.
You see, even though neither plate is actually being subducted on two of
the convergent plate boundaries, one plate is pushed a bit under the other
normally. At the sea floor to continent boundary, the sea floor is
subducted. As the plates move together, molten material from the mantle
seeps up between the converging plates. The gap is closed as the plates
move more into each other, locking the molten material in. This, by the way,
happens at all of the convergent boundaries. After much time, pressure
builds up as the molten ma .....
Number of words: 395 | Number of pages: 2 |
|
|