Hazards from the Universe
There are several perilous conditions that exist in our vast universe that could directly impact life as we know it on Earth. These hazards include meteors, asteroids, emission of charged solar particles, supernovas, and problems caused by man. Although the odds of these dangers directly harming Earth’s population are extremely low, if not impossible altogether, something about pending apocalypse seems to excite the human mind. The possibility of a meteorite or asteroid of significant size colliding into Earth poses as a legitimate threat to our planet. Most meteorites are miniscule and cause little harm. In fact, as many as four billion meteorites enter Earth’s atmosphere every day. However, only the larger meteors reach the earth because smaller ones burn up in the atmosphere. A large meteor impact, while rare, should still cause some concern. Barringer Crater in Arizona was formed from an iron meteor approximately 30-50 meters in diameter. Other such large meteors are often held accountable for the seemingly sudden extinction of dinosaurs. Based upon scientific calculations, three craters of at least 10 km are expected to form on the earth every million years. While these larger meteors are rare, any oncoming asteroid could be pushed off course by the use of rockets or explosives (Bray, 1999).
Meteorites are dangerous, but the asteroids which they come from are even worse. Most asteroids are found in the asteroid belt between Mars and Jupiter. However, the scientists at the Lincoln Near Earth Asteroid Research Project recently detected an asteroid 2km wide which was originally predicted to collide with the Earth on February 1, 2019, with possible catastrophic implications. Fortunately, it is believed that this particular asteroid threat will disappear. Still, the public is aware of how threatening an asteroid could be. Hollywood has added to the apocalyptic hysteria surrounding asteroids by releasing movies like Armageddon and Deep Impact. While there is no reason to panic right now, asteroids should be feared because an impact would cause extreme and possibly fatal destruction.
Violent eruptions of gas on the Sun’s surface called solar flares can send solar charged particles towards Earth and appear to be possible threats to the safety of mankind. These expulsions of charged particles come from the sun flares’ relationship with sun spots. Sun spots are cooler and darker regions of the Sun where the solar magnetic field extends off of the Sun’s surface. When the charged particles ejected from the sun reach Earth and enter its upper atmosphere, they react with present atoms and can cause major disturbances to satellites and terrestrial communications systems such as T.
Not long ago on the 15th of February 2013 an asteroid named 2012 DA14 merely scrapped the earth’s surface by a tiny margin, even closer than some satellites. According to the NASA (National Aeronautics and Space Administration) the asteroid was 17,200 miles above our planet's surface, which may seem a long way from earth. However, in terms how big the earth is compared to the 17,200 miles, we can acknowledge that many people were saved from death.
Cosmic rays are high energy charged particles, originating in outer space, that travel at nearly the speed of light and strike the Earth from all directions. The term "cosmic rays" usually refers to galactic cosmic rays, which originate in sources outside the solar system, distributed throughout our Milky Way galaxy. However, this term has also come to include other classes of energetic particles in space, including nuclei and electrons accelerated in association with energetic events on the Sun (called solar energetic particles), and particles accelerated in interplanetary space. Co...
On display at the Art Institute of Chicago, Nighthawks is an oil and canvas work that represents Edward Hopper at his most iconic and popular. Hopper more than often drew on his immediate surroundings for in...
Washington, George."Washington's Farewell Address 1796." Yale Law School Avalon Project, 2008. Web. 12 Sept 2013.
Armageddon begins by showing the destruction of the Earth by an asteroid 65 million years ago, when the dinosaurs inhabited the earth. According to the narration, the asteroid is said to have been six miles wide, with the power of 10,000 nuclear weapons. The after effects were trillions of tons of dirt and rock thrown into the atmosphere, creating a blanket of dust that the sun was unable to penetrate for 1,000 years. The narrator explained that it happened once, and that it would happen again, it was only a matter of when.
On June 30th, 1908, another of these universal mysteries (although one that can be considered philosophically smaller) released 10-15 megatons of energy in a blast that devastated large swathes of the Tunguska forest region in Russia. Many theories exist regarding the cause of this impact, known as the Tunguska Event, ranging from notions as grounded as volcanic gas vent explosions to ideas as enticingly fanciful as a UFO crash, government bomb testing, or even secret experiments conducted by Nikola Tesla. Most scientists have settled on the idea that the event was the result of a celestial body breaking through earths upper atmosphere and exploding before impact with the surface. The idea that asteroids, comets or other space debris could have brought elements necessary for life to our planet is not a new one, and whilst most research on Tunguska focuses on what exactly the celestial body was, the same research informs us whether a 'life by impact', or pseudo-panspermia, hypothesis could be somewhat veridical.
John Stuart Mill claims that people often misinterpret utility as the test for right and wrong. This definition of utility restricts the term and denounces its meaning to being opposed to pleasure. Mill defines utility as units of happiness caused by an action without the unhappiness caused by an action. He calls this the Greatest Happiness Principle or the Principle of Utility. Mill’s principle states that actions are right when they tend to promote happiness and are wrong when they tend to produce the reverse of happiness. Happiness is defined as intended pleasure and the absence of pain while unhappiness is defined as pain and the lack of pleasure. Therefore, Mill claims, pleasure and happiness are the only things desirable and good. Mill’s definition of utilitarianism claims that act...
In his essay, Utilitarianism Mill elaborates on Utilitarianism as a moral theory and responds to misconceptions about it. Utilitarianism, in Mill’s words, is the view that »actions are right in proportion as they tend to promote happiness, wrong as they tend to produce the reverse of happiness.«1 In that way, Utilitarianism offers an answer to the fundamental question Ethics is concerned about: ‘How should one live?’ or ‘What is the good or right way to live?’.
Deforestation is fast becoming one of the world’s worst environmental/geographical occurring disasters known to mankind, and is due to humankind’s greed, ignorance and carelessness when considering the future of our environment.
The forests around the world a supply a plethora of community amenities and commercial goods , nevertheless forested terrain progressively is becoming transformed to accommodate other uses, including cropland, pasture, mining, and urban areas, which can produce superior private financial returns. The wide array of benefits the forest provides that vanish directly tied to deforestation have resulted in several policies drafted with the sole intention to reduce the frequency of deforestation. This paper has two primary objectives. First, this paper will review and summarize both the preceding and current research on deforestation. Second, it will emphasize the significance of future research and development, as well as other solutions needed
"Could a juiced-up particle accelerator destroy the Earth?." io9. N.p., n.d. Web. 28 Apr. 2014. .
Although it is impossible to rewrite history, we still have to be careful to prevent a catastrophe like the asteroid said to have hit the earth sixty five million years ago. If there is ever a scare of an asteroid as big as the Alvarez Asteroid, one way of preventin...
Scientists themselves are just beginning to understand the serious problems caused by deforestation. Deforestation occurs all over the world by all types of people. Peasant farmers even add to the problem because in most tropical countries the farmers are very poor only making between eight hundred and fifty four hundred dollars annually (NASA Facts). Therefore, they do not have enough money to buy what they need to live therefore they must farm to raise crops for food and to sell. In these poor countries the majority of people are peasant farmers this farming adds up to a great deal of deforestation. These farmers chop down a small area of trees for there plot to farm on and burn the tree trunks (NASA Facts). The combined number of farmers maintaining this process creates a great deal of clearing and burning of the land they need to cultivate, which results in land being treeless. Commercial logging is also another common form of deforestation. This commercial logging wipes out massive amounts of land sometimes deforesting several miles at...
A solar storm refers to space weather involving solar activities like solar flares and coronal mass ejection. Although most solar storms may only have minor effect on the Earth, a particularly strong one like the 1859 Carrington Event is likely to cause damage of spacecraft and satellites, as well as radio and electricity blackout of large regions on the Earth. In the age that people’s lives are greatly dependent on electronic and telecommunication technologies, our modern civilization is under a constant threat posed by a hazardous solar storm. This paper will examine a few past solar storm observations and attempt to analyze the effects of the major components of solar storms on human technologies and people’s lives.