Solar System Essay, Research Paper
Origin Of The Solar System
For more than 300 years there has been serious scientific discussion
of the processes and events that led to the formation of the solar system.
For most of this time lack of knowledge about the physical conditions in
the solar system prevented a rigorous approach to the problem.
Explanations were especially sought for the regularity in the directions of
rotation and orbit of objects in the solar system, the slow rotation of the
Sun, and the Titius-Bode law, which states that the radii of the planetary
orbits increase in a regular fashion throughout the solar system. In a
similar fashion, the radii of the orbits of the regular satellites of
Jupiter, Saturn, and Uranus increase in a regular manner. In modern times
the slow rotation of the Sun has been explained as resulting from the
deceleration of its angular motion through its magnetic interaction with
the outflowing solar wind, so that this feature should not have been
considered a constraint on theories of the origin of the solar system.
The many theories concerning the origin of the solar system that have
been advanced during the last three centuries can be classified as either
dualistic or monistic. A common feature of dualistic theories is that
another star once passed close to the Sun, and tidal perturbations between
the two stars drew out filaments of gas from which the planets condensed.
Theories of this type encounter enormous difficulties in trying to account
for modern information about the solar system, and they have generally been
discarded. By contrast, monistic theories envisage a disk of gas and dust,
called the primitive solar nebula, that formed around the Sun. Many of
these theories speculate that the Sun and the planets formed together from
the primeval solar nebula. A photograph taken in 1984 of a nearby star,
Beta Pictoris, appears to show a solar system forming in this way from a
disk of surrounding material.
The large amount of activity that has taken place in the last 20 years
in the renewed exploration of the solar system has also provided a great
impetus for renewed studies of the origin of the system. One important
component of this research has been the detailed studies of the properties
of meteorites that has been made possible by modern laboratory
instrumentation. The distribution and abundance of the elements within
different meteoritic mineral phases has provided much information on the
physical conditions present at the time the solar system began to form.
Recent discoveries of anomalies in the isotopic compositions of the
elements in certain mineral phases in meteorites promise to give
information about the local galactic interstellar environment that led to
the formation of the solar system. Investigations of the properties of
other planets has led to the new science of comparative planetology, in
which the differences observed among the planets not only lead to a better
understanding of the planets, but also pose precise new questions
concerning the mechanisms by which the planets may have been formed.
Studies of the stars within our galaxy have shown that the age of our
galaxy is much greater than the age of the solar system. Therefore,
processes observed in the formation of stars within our galaxy today are
likely to be found relevant to the formation of our solar system. Stars
appear to form in groups or associations, as a result of the gravitational
collapse of clouds of gas and dust in the interstellar medium. Modern
monistic theories envisage the gas and dust in the primitive solar nebula
to be the collapsed remnant of a fragment of an interstellar cloud.
There has been much discussion of how the planets might have formed
from the primeval solar nebula. In recent years attention has focused on
the possibility that two types of gravitational instabilities might have
played an important role in this process. One type is a gravitational
instability in the gas of the primitive solar nebula, from which there
would be formed a giant gaseous protoplanet. From the evolution of such
protoplanets there could arise, in the outer solar system, the giant
planets that are observed today. In the inner solar system, the possibility
exists that giant gaseous protoplanets formed rocky cores at their centers,
which survived the stripping away of the gaseous envelopes caused by
gravitational and thermal forces from the growing Sun.
The other form of gravitational instability involves the condensed
materials in the solar nebula. Small dust particles that may have been
present in the gas of the solar nebula could be expected to settle toward
the midplane of the nebula if the gas were not subject to extensive
turbulent churning. Gravitational instabilities acting on a thin dust layer
might have formed bodies ranging from tens to hundreds of kilometers in
radius. Collisions among these bodies may have played a major role in
accumulations of material to form the planets.
It must be stressed that all theories of the origin of the solar
system currently being formulated respond to and are limited by the rapid
accumulation of facts about planetary bodies within the solar system.
Because of the rapid rate of progress in such studies, it is generally
recognized that such theories are preliminary and simplified, so that ideas
and theories in this area of research can be expected to continue to evolve
rapidly.
Другие работы по теме:
Mercury 2 Essay Research Paper MercuryMercury is
Mercury 2 Essay, Research Paper Mercury Mercury is the eighth largest planet in our solar system, equaling roughly one-third of Earth s size. It is also the planet closest to the sun, and is often visible with binoculars, or even the naked eye. It s difficult to see in the twilight sky. One of Mercury s most distinguishable features is its rugged surface, which is similar to the surface of the Earth s moon.
Solar Flares Essay Research Paper INTROI Solar
Solar Flares Essay, Research Paper INTRO I. Solar flares are violent eruptions of gases that release ultra-violet radiation, x-rays and gammy rays. It’s an enormous explosion of hydrogen and helium above the sun surface.
Space Crafts Launched In The Seventies Essay
, Research Paper CURRENT EVENT My current event article comes from the Internet. It is an article on the four major space crafts launched in the seventies. The Pioneer 10 and 11, and Voyager 1 and 2 are the ships located in space. This article came from www.currentsky/articles/explore/index.html. It talks about the space crafts and how they are further in space than any other satellite we have ever launched.
My Ass Essay Research Paper v A
My Ass Essay, Research Paper v A Florentine philosopher, physicist, and inventor. This is a lot of work to do in one life time. Galileo Galilei did all that and even more. He is most commonly remembered for his condemnation by the Holy Office as a result of his attempting to prove the Copernican theory of the universe.
Northern Lights Essay Research Paper Northern Lights
Northern Lights Essay, Research Paper Northern Lights The Northern Light are poetry, nature’s light show, and are quantum leaps in the oxygen atom. They are elementary particle physics, superstition, mythology, and fairy tales. The Northern Lights or Aurora Borealis have filled us with wonder and inspired artists; they have frightened people to think the world’s end was at hand.
Dwight BollingerS
“The Origin Of Language? Essay, Research Paper Essay Question I found Dwight Bollinger?s essay entitled ?The Origin of Language? to be a very interesting work. I especially enjoyed the section about the chimpanzees. Although we know
Lesson Plan Essay Research Paper Sara Bartalo
Lesson Plan Essay, Research Paper Sara Bartalo 11/20/00 Grade 4 Solar System I. Pre- Instruction Phase 1. NYS Standards: ELA Standards 1,2 & 4- Reading, Writing, Listening, and Speaking for
The Telescope Essay Research Paper The TelescopeIn
The Telescope Essay, Research Paper The Telescope In 1609 Galileo Galilee Constructed his first telescope. Little did he know that this would be one of the greatest inventions the world would ever see. This fairly simple creation enhanced our ability to see things that are very far away and that can?t be seen with the naked eye.
Ulysses Essay Research Paper The Ulysses Mission
Ulysses Essay, Research Paper The Ulysses Mission is the first spacecraft to explore interplanetary space at high solar latitudes. Ulysses is both a study of the European Space Agency (ESA) and the National Aeronautics and Space Administration (NASA) of the USA. The spacecraft and spacecraft operations team is provided by ESA, and the launch and the spacecraft, radio tracking, and data management operations are provided by NASA.
Solar Oven Essay Research Paper Solar OvenWhy
Solar Oven Essay, Research Paper Solar Oven Why it will work: It will work because the cold air under the box will be separated by four (4) wood pegs. The black, non-glossy paint will attract heat, rather than
Space Colonization Essay Research Paper SPACE COLONIZATION
Space Colonization Essay, Research Paper SPACE COLONIZATION My five minute essay topic is space colonization. There are three places that I know of that the human race has thought of colonizing . They are: The largest asteroid that is orbiting in our solar system, the Moon and Mars.
Plutonium Essay Research Paper An American Chemist
Plutonium Essay, Research Paper An American Chemist named Glenn T. Seaborg discovered plutonium in 1941 at Berkeley University in California. The discovery of Plutonium was not announced until 1946 because America was at war with Japan and Germany. Plutonium was named after the planet Pluto, after the planet Neptune in the solar system and Neptune gave its name to Neptunium.
The Age Of Comets Essay Research Paper
The article summarized below is from THE NATIONAL GEOGRAPHIC (issue Dec.97) by William R. Newcott. It tells about how comets are important and their effect on earth and its people.Comets are leftover scrubs of material that did not make it to planethood in the events creating our solar system. They orbit in a perpetual Deepfreeze until some subtle gravitational nudge upsets the delicate balance.
Neptune
’s Storm System Essay, Research Paper NEPTUNE’S STORM SYSTEMS Neptune’s storms are a mysterious wonder of the solar system. They are quite unique, as well as a trademark for the big blue planet named after the Roman God of the sea. I hope you will find interesting information in this report.
Perspective On The Healthcare Industry Essay Research
Paper Perspective on the Healthcare Industry Healthcare systems, whether in a well-developed nation or an economically poor society, should be viewed upon as a system which can improve or replace humanity?s biological misfortunes. In other words, the system is always existent and should be open to all members of a community, regardless of financial or socioeconomic status.
Three Kings Day Essay Research Paper A
Three Kings Day Essay, Research Paper A Periodical on Rising Neptune By Paul Cusin In past years the knowledge of our solar system never really went further than Jupiter and Saturn, But 11 years ago the VOYAGER II on a mission to observe Saturn and Jupiter had time to waste so it took some shots of Neptune. Until this time Neptune had been know as a gas planet, it was said to be too far from the sun to have any energy, from it.
Where The Planets Are Essay Research Paper
Where the Planets Are In the beginning, the Earth was believed to be both flat and at the center of the universe. Then a sailor set sail to prove that the Earth is in fact round. Decades later science proved that the churches were wrong and in fact the Earth orbited around the Sun not the other way around. Now it is commonly known that the solar system that the human race lives in is just a small part of a much larger spinning body called a galaxy.
Hellp Essay Research Paper By TULU Email
Hellp Essay, Research Paper By: TULU E-mail: Tulu_c_t@yahoo The urge to explore and search the unknown is part of human nature and has led to many of the most important changes in our standard of living. Searching and exploring enriches our spirits and reminds us of the great potential of achievement.
Solar Energy Essay Research Paper Solar EnergyThe
Solar Energy Essay, Research Paper Solar Energy The Word solar comes from the Latin word solaris, which means sun. Solar Energy is the act of catching light from the sun and converting it in to energy. This is not new many ancient people used solar energy. The Egyptians, the Greeks, the Romans and American Indians used the sun to warm their homes.
Solar Essay Research Paper SOLAR ENERGY
Solar Essay, Research Paper SOLAR ENERGY — THE ENERGY OF THE FUTURE? About 47 per cent of the energy that the sun releases to the earth actually reaches the ground. About a third is reflected directly back into space by the atmosphere. The time in which solar energy is available, is also the time we least need it least – daytime.
Solar Energy Essay Research Paper Solar EnergyThis
Solar Energy Essay, Research Paper Solar Energy This experiment deals with the testing of solar energy and what material holds the greatest amount of heat. Solar energy is heat that the sun gives off. The materials used to determine what holds the heat the longest are rock, soil, water, and stone. The purpose of this project is to see what of the four materials hold the heat the longest.
Air Pollution Essay Research Paper In 1948
Air Pollution Essay, Research Paper In 1948, the industrial town of Donora, Pennsylvania suffered 28 deaths because of the thick smog. Air pollution is an ecological problem having to do with toxins in the air. There are a few things the human race has done to try to prevent air pollution from taking such a serious toll.
Metric System Essay Research Paper Metric SystemThe
Metric System Essay, Research Paper Metric System The Metric System, also known as the System Internationale (SI) was developed in France in 1799. The Metric System was created because the French and English were not in agreement politically, therefore the French did not want anything to do with the English including their system of measurements.
Solar Energy An Alternative Energy Essay Research
Paper Solar Energy: An Alternative Energy Imagine a perfect source of energy. One with which no pollution what-so-ever is associated with. No poisonous gasses or destruction of rain forests. This
Argument From Design Essay Research Paper Hume
Argument From Design Essay, Research Paper Hume s criticism in regard to the Design Argument, although complex, can be summarized quite simply. It is first important to understand the main elements of the Design Argument. Hume s theory in opposition to that of the Design Argument contests the suggestion that the simple things in the universe must be compared with the greater to appreciate their complexity as a component of the system of the universe.
Mercury Essay Research Paper MercuryMercury is the
Mercury Essay, Research Paper Mercury Mercury is the second smallest planet in the solar system and is closest and innermost planet to the sun. Did you know that the sun warms Mercury? It is 36 million miles from the sun and takes 88 days to circle it, and Mercury takes 59 Earth days to spin once on its axis. But Mercury does not have any gases.
Mercury Essay Research Paper MercuryIn Roman mythology
Mercury Essay, Research Paper MercuryIn Roman mythology Mercury is messenger of the gods, and son of the god Jupiter. Mercury is the planet closest to the sun. Its distance from the sun is approximately 58 million km (about 36 million miles); its diameter is 4875 km (3030 miles); its volume and mass are about : that of the earth; and its density is approximately equal to that of the earth.
Near Earth Objects Essay Research Paper Near
Near Earth Objects Essay, Research Paper Near Earth Objects What are NEOs? Where do they come from? Do they pose any real threat to Earth? Can they provide viable space resources? All of these questions are now
Lunar Eclipse Lab Essay Research Paper Title
Lunar Eclipse Lab Essay, Research Paper Title: Phases and Eclipses of the Moon Purpose: The purpose of this lab is to demonstrate the different phases of the moon during its revolution around the earth and also to display solar and lunar eclipses.
The Milky Way Essay Research Paper The
The Milky Way Essay, Research Paper The Milky Way seds.lpl.arizona.edu/messier/more/mw_sky.html The Milky Way is the home of our Solar System along with at least 200 billion other stars and planets. It contains thousands of clusters and nebulas. It is the home of nearly all the objects of Messier’s catalog that aren’t their own galaxies.
Mercury Essay Research Paper Laolee XiongPeriod 222697MERCURY
Mercury Essay, Research Paper Laolee Xiong Period 2 2/26/97 MERCURY Mercury is the closest planet to the sun. It s average distance from the sun is approximately fifty-eight million km and it s diameter is 4875 km, making it the second smallest planet in our solar system. It s volume and mass are about 1/18 that of the earth and it s average density is approximately equal to that of the earth.
The Origin Of The Solar SystemAstronomy Essay
, Research Paper The Origin of the Solar System One of the most intriguing questions in astronomy today is the how our solar system formed. Not only does the answer add insight to other similarly forming systems, but also helps to satisfy our curiosity about the origin of our species. Although it is highly unlikely that astronomers will ever know with absolute scientific certainty how our system originated, they can construct similar theoretical models with the hopes gaining a better understanding.
Solar System Essay Research Paper Our Solar
Solar System Essay, Research Paper Our Solar system, the sun and its planet?s has not always been there.It is nearly five billion years ago, and there is no solar system, no planets,moons, no sun. Instead there is a big cloud of dust and gas called a nebula. Thiscloud has been slowly twisting for more than 10 billion years, held togetherby it?s own gravity.