BETA PICTORIS: PLANETS? LIFE? OR WHAT?
JARA
ASTRONOMY 102 SEC 013
The ultimate question is; Is there a possibility that life might exist on a planet in the Beta Pictoris system? First, one must ask, Are there planets in the Beta Pictoris system?. However, that question would be impossible to answer if one did not answer the most basic questions first; Where do planets come from? and do the key elements and situations, needed to form planets, exist in the Beta Pictoris system?.
To understand where planets come from, one has to first look at where the planets in our solar system came from. Does or did our star, the sun, have a circumstellar disk around it? the answer is believed to be yes.
Scientists believe that a newly formed star is immediately surrounded by a relatively dense cloud of gas and dust. In 1965, A. Poveda stated, “That new stars are likely to be obscured by this envelope of gas and dust (1).” In 1967,
Davidson and Harwit agreed with Poveda and then termed this occurrence, the “ cocoon nebula” (1). Other authors have referred to this occurrence as, a “ placental nebula” (1), noting that it sustains the growth of planetary bodies.
For a long time, even before there was the term cocoon nebula, planetary scientists knew that a cocoon nebula had surrounded the sun, long ago, in order for our solar system to form and take on their currents motions (1).
In 1755, a German, named Immanuel Kant, reasoned that “gravity would make circumsolar cloud contract and that rotation would flatten it (1)." Thus, the cloud would assume the general shape of a rotating disk, explaining the fact that the planets, in our solar system, revolve in a disk-shaped distribution.
This idea, about the disk-shaped nebula that was formed around the early sun, came to be known as the nebula hypothesis (1). Then, in 1796, a French mathematician named Laplace, proposed that the rotating disk continued to cool and contract, forming planetary bodies (1). Also, when investigating the evolution of stars, it was proposed “that a star forms as a central condensation in an extended nebula... The outer part remains behind as the cocoon nebula (1)”
. During the same study it was also indicated that under various conditions such as: rotation, turbulence, etc. the nucleus of the forming star may divide into two or more bodies orbiting each other (1). This may be the explanation as to why more than half of all star systems are binary or multiple, rather than singles stars, like ours, the sun.
This same fragmentation may also form bodies too small to become stars.
...planetesimals that once orbited the sun but were, at one point, captured into a planetary orbit by the planet's gravity. Cratering is also a sign of these period, with the collision of planetesimals into larger ones being the explanation.
Templeton, Matthew. "Trapezium, BM Orionis, and Young Stellar Objects." Www.aavos.org/vsots_bmori. N.p., 4 Apr. 2012. Web. 24 Mar. 2014. .
A woman’s only job is to stay at home, take care of her family, and pleasure her man. What is a man’s job? “Men, they do everything,” quoted a fellow male classmate, “Men get the real money.” But it is the twenty-first century! Women are no longer expected to stay at home; they have taken roles as teachers, doctors, C.E.O.s, part of the military, and the list goes on. As for men, it is now acceptable for them to stay at home, take care of their families or even become nannies and nurses. Will Meek, creator of website “Psychology of Men”, defined gender role as a set of attitudes, behaviors, and self-presentation methods ascribed to members of a certain biological sex. Gender roles have changed throughout the course of American history; both sexes have come so far from sexist stereotypes that resulted from societal expectations that existed in the past.
As every day passes, prisoners wait patiently in their dreadful chamber, awaiting their execution day, which tends to result to physical and psychological torture. Consequently, this remains as the so-called righteousness of the death penalty, which is supposed to get rid of murderers, radicalism, and criminals that perform sodomy. Though, there are times when capital punishment goes horribly wrong, initiating the death of innocent prisoners, and instigating the prisoner to go through atrocious anguish. Moreover, the death penalty leads to additional damage to the victim’s family, since the death penalty entails the family to relieve the agony and grief of the death of their loved one for many years. Furthermore, capital punishment remains as the fundamental block to eradicate criminals, however, there are numerous drawbacks to the death penalty that lead to additional damage than solving the problem; therefore, Americans shouldn’t support capital punishment, unless their prepared to perform the undesirable job of killing the prisoners.
In this paper I will ask three people four different questions about their views on the death penalty. The first question I asked was “Why do you feel the death penalty is wrong?” Question number two, “Does the death penalty help protect the public and discourage crime?” Question number three, “Do you consider the death penalty cruel and unusual?” The final question, “Is the death penalty economically justifiable and cost effective?”
Although capital punishment may seem like the perfect deterrent it does not lower the crime rate. According to FBI data, states that have abolished the death penalty have homicide rates consistent with or below the national rate.(Diehm)
Stars are born and reborn from an explosion of a previous star. The particles and helium are brought together the same way the last star was born. Throughout the life of a star, it manages to avoid collapsing. The gravitational pull from the core of the star has to equal the gravitational pull of the gasses, which form a type of orbit. When this equality is broken, the star can go into several different stages. Some stars that are at least thirty times larger than our sun can form black holes and other kinds of stars.
Masculinity is a subject that has been debated in our society for quite some time. Many wonder what it means to be masculine, as it is difficult to define this one –sided term. Pairing this already controversial term with “feminist studies” can bring about some thought - provoking conversation. Feminist studies of men have been around for many years with regards to the feminist movement. It seeks to create gradual improvements to society through its main principle of modifying the ways in which everyone views what it means to be a man. Feminist studies of men bring forth the discussion of hegemonic masculinity; how this contributes to the gender hierarchy, the radicalized glass escalator and ultimately the faults of this theory.
Alcoholics that are trapped so deep in the spell of alcoholism are leaving a legacy behind for those who continue to make alcohol companies millions of dollars by ruining their lives, making the wrong investment every time they purchase a bottle of alcohol; to them an “alternative route” to mask any issues they might be encountering at a particular time in their lives, and to those alcohol-making companies they are walking fortunes—walking billboards. Advertisement ads for these products continue targeting not only the already alcoholics, but also targeting underage drinkers. These alcohol-making companies can argue differently and have sworn to not be so focused on targeting people under 21. “Alcohol advertisers have pledged to comply with self-regulatory codes designed to limit t...
GRANT, ANDREW. "Atoms & Cosmos: Supernova Is A Giant Dust Factory: Grains Spewed By Explosion Offer Clues To Star
Stars are born in the interstellar clouds of gas and dust called nebulae that are primarily found in the spiral arms of galaxies. These clouds are composed mainly of hydrogen gas but also contain carbon, oxygen and various other elements, but we will see that the carbon and oxygen play a crucial role in star formation so they get special mention. A nebula by itself is not enough to form a star however, and it requires the assistance of some outside force. A close passing star or a shock wave from a supernova or some other event can have just the needed effect. It is the same idea as having a number of marbles on a trampoline and then rolling a larger ball through the middle of them or around the edges. The marbles will conglomerate around the path of the ball, and as more marbles clump together, still more will be attracted. This is essentially what happens during the formation of a star (Stellar Birth, 2004).
Currently in the nursing industry males make up as little as 10% of the nursing population in places like the UK (Whittock & Leonard, 2003a) even though many male nurses state that nursing is a rewarding and meaningful career (Rajacich, Kane, Williston, & Cameron, 2013). Nursing is still seen as female dominated industry (Hoffnung, 2013) and as stated by Sherrod, Sherrod & Rasch, nursing has yet to break the gender roles that other professions have managed to (Rajacich et al., 2013) even though women have to reach a higher standard to progress in male dominated professions (Hoffnung, 2013).
To understand gender discrimination in nursing we must first understand the past. Nursing was found in the 3rd century in ancient Rome and was dominated by men. (Gender) Since the 20th century women have dominated the nursing profession. (Gender) Actually in the 1917 American Nurse Association was founded, and no men where allowed. (Gender) The rule eventually changed in 1930, allowing men the right to be a nurse Classroom prejudice is my first reason of discrimination against male nurses. In an interview I conducted with Derrick Johnson a registered nurse he stated that "In most of "his" classes the curriculum and teaching styles where centered towards women"(Johnson). Johnson goes on to state that " While [he] was in nursing school he could never recall a time he read some thing in one of his textbooks referring to men as nurses"(Johnson). These examples given by Johnson proves that nursing educators fail to acknowledge the needs of male students. I myself am a sophomore in the College of Nursing at the University of Cincinnati. In the year in and a half that I have attended this university I too have experience gender discrimination by professors in nursing.
There is a long history of astronomy in science fiction. Some of the earliest can be seen with the Greeks, with their tales of gods representing the parts of the universe they could see. Other cultures began writings of men going beyond the limits of the atmosphere as early a...
Stereotypes of taking up a female position, lack of male interest in the profession, low wage, nursing job nicknames, such as Sister and Matron, and the assumption that male nurses will have a harder time in the workplace carrying out their duties are just a few examples. There is a shortage of male nurses at the moment, but there is no sign that they suffer in their career. Despite equal opportunity legislation, nursing has continued to be a female-dominated profession. For instance, the male-to-female ratio of nurses is approximately 1:19 in Canada and the United States. Evidence suggests that male nurses can be fast