...Karina Almost 1,000 people were injured when a meteor shot across the sky and exploded over central Russia on Friday, sending fireballs crashing to Earth, shattering windows and damaging buildings. Definition : Small pieces of space debris — usually parts of comets or asteroids — that are on a collision course with the Earth are called meteoroids. They become meteors when they enter the Earth's atmosphere. Most meteors burn up in the atmosphere, but if they survive the frictional heating and strike the surface of the Earth they are called meteorites. The site of Friday's spectacular show is about 5,000 kilometres west of Tunguska, which in 1908 was the site of the largest recorded explosion of a space object plunging to Earth. That blast, attributed to a comet or asteroid fragment, is generally estimated to have been about 10 megatons; it levelled some 80 million trees. The meteor — estimated to be about 10 tons — entered the Earth's atmosphere at a hypersonic speed of at least 54,000 kph and shattered about 30-50 kilometres above the ground. Chelyabinsk city authorities urged people to stay indoors unless they needed to pick up their children from schools and kindergartens. They said what sounded like a blast had been heard at an altitude of 10,000 metres. Yana The explosions broke an estimated 100,000 square meters of glass. 985 people had asked for medical assistance. The Interfax news agency quoted that 43 people were hospitalized. A fireball blazed across the...
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..."shooting stars", but their scientific name is "meteors". Let's learn some more about falling stars. Space looks empty, but there's all kind of stuff out there: gas, dust and tiny rock and ice fragments. The tiny pieces of rock or ice are known as meteoroids. They could have been left over from the formation of the Solar System 4.6 billion years ago. Or maybe they were part of the tail of a comet that was making a near pass to the Sun. Rocks and asteroids can collide with one another in space and generate meteoroid debris. Who knows how long the tiny object was orbiting the Sun until its path finally crossed the Earth. When a meteoroid strikes the Earth's atmosphere, it burns up leaving a tiny trail in the sky. This trail is the falling star, or meteor. The size of the trail depends on the speed of the object, the angle it struck the atmosphere at, and the amount of mass that it has. The largest objects can leave a trail across the sky that lasts for a few seconds. Although you can see falling stars any night of the year, there are certain times when they're more frequent. These are the times when the Earth orbit takes us through the tail of an ancient comet. We'll pass through the tail fragments at the same time every year, so a meteor shower is predictable. Some famous meteor showers are the Perseids in August, and the Leonids in November. So remember, when you're looking for falling stars, you're not seeing stars at all, but meteors; tiny chunks of rock and ice impacting the...
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...Screenplay EXT. DESERT - DAY Ember, a 22 year old with burnt orange eyes and long brown hair held up in a pony tail, combs over the sand with a metal detector and shuffles around to the music playing from a radio off screen. The sand covered radio is sitting on the pulled down tailgate of a Grey Ford Ranger coated with even more sand. RADIO And that was Bustin Jiebers new hit song Condolences. Before we go to commercial break I would just like to give a friendly reminder to keep an eye on the sky this week for the annual meteor shower. If you missed last nights sky show, no need to wory because it will be going on all week.. Ember clicks off the radio and plops down onto the bed of the truck. She wipes the sweat from her forehead and take a swig of water from the cantine sitting behind the radio. Ember lays down in the truck and stares into the cloudless blue sky. She notices a small red dot int he sea of blue and squints to try and get a clearer look at what it is. The dot seems to be getting bigger ever so slightly and then her eyes begin to widen. The dot was actually something hurteling down from the sky. Ember jerks back up to her feet and starts sprinting with her metal detector away from the car as the object crashes down into her truck right were she was lying. EMBER My truck! Ember tries to walk closer but a small explosion fromt he crash erupts and nocks her to the ground as she covers her face from the heat of the fire and bright...
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...Abstract The purpose of this paper is to explain what an afterburner is, who created it, when it was created and what it is used for. Afterburners have mostly one purpose and that is to provide an increase in thrust, which is mainly used during takeoff, for a rapid climb in supersonic commercial aircraft to achieve the most efficient cursing altitude rapidly, and during combat situations. It was created and tested in late 1944 by the British, and then again in mid-1945. The US also worked on afterburners in the period of 1948 with installations on early straight wing jets like the Pirate and the Scorpion. Today the afterburner has come a long way and are considered standard equipment for fighter aircraft. Only a few civilian planes have used them, and one being a very well-known one, the Concord. This plane could fly long distances at supersonic speeds, but at a very high cost of fuel burn. In conclusion the afterburner is a great tool that can provide the extra thrust needed in many situations for the combat pilot in a military fighter jet or the civilian pilot just trying to achieve the greatest amount of altitude for an efficient flight and conserve fuel. Afterburner Report An afterburner is a method of increasing short periods of thrust in a jet engine in order to takeoff faster, climb, or perform certain types of combat maneuvers. This burst is achieved by injecting additional fuel for burning downstream of the turbine, because of all the excess air (oxygen) the...
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...At first glance Discover magazine appears to be a scientific magazine comparable to Popular Science or Wired. Discover magazine does have information pertaining to the scientific community, but it is more than just single subject topics like electronics or biology. Discover magazine entices and educates its readers on latest technologies and breakthroughs within the entire scientific community not just one aspect of it. The scientific community is broad term used to describe those that are interested in one of the hundreds of scientific fields such as astronomy, computers, or health care to name a few. The magazine is geared toward all those interested in the scientific community with articles on subjects such as astronomy, chemistry, biology, technology, medicine, and more. Discover magazine contains articles that explain how these new scientific breakthroughs pertain to one on a day to day basis and how they will impact the future of the world. In a single issue of Discover magazine you are likely to read about topics such as medicine, asteroids, global warming, and animals. They colorful colors and photographs on the cover and in the magazine would lead one to believe that Discover magazine is a typical grocery store check-out lane item, however upon closer inspection one would note that it contains articles written by those that have advance degrees in science and Nobel Prize winners. In the October 2015 issue of Discover magazine there is a lengthy article about...
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...Throughout history, clubs typically are something to be sought after. Being a member of a club is usually a matter of prestige. However, to get into this exclusive club, you must be ejected from a plane in a Martin-Baker ejection seat, thus saving your life. The founder of the company, Sir James Martin, was invested at a very young age with assembling and inventing mechanics. Starting out selling small oil engines, Martin was approached by his friend, Captain Valentine Baker, who soon became his business partner in “Martin-Baker Aircraft Company Ltd.” Being a trained pilot, Baker took to testing out the prototypes of planes and engines built by Martin. However, upon testing the MB-3 fighter plane--intended for the British Royal Air Force—a tragedy occurred. Immediately after taking off, the plane lost power and Baker was forced to make an emergency landing in a nearby field. Skidding across the ground, a wing of the plane caught a tree stump, combusting into flames. Captain Baker perished in the fire. Distraught with grief over his friend, Sir James Martin shifted his primary focus to aircraft safety. Within 2 years, after being asked to do so by the Ministry of Aircraft Production, Martin designed a means of escaping a fighter aircraft by a pilot. The process would be a forced ejection with the pilot still sitting in the seat, propelled by an explosive or pressurized charge. From here, a drogue gun would fire a drogue parachute, safely easing the occupant to the ground. And...
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...What Causes a Meteor Shower Meteor showers are caused by dust released from comets traveling through the solar system. The dust spreads out along the comet's orbit and forms an elliptical trail of debris that passes around the sun and crosses the orbits of the planets. Meteor showers occur when Earth passes through this trail of debris during its yearly orbit around the sun. They glow because the fiction with the air molecules heat up and create incandescence. History Radio astronomy began in the early 1930’s -the inventor -Karl Jansky. Working to the company Bell Laboratories, it was created in order to figure out the strange noises that keep occurring across receivers operating in the 20 MHz region of the radio spectrum. At...
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...The Scarlet Letter: Symbolism For symbolism we used this illustration as a way to show the connection between all the symbols and their relation to sin. The path of sin starts at the prison door. The break in the door shows that a person cannot run from their past and sins, they will come out eventually. Notice how the river expands to include more and more symbols. We chose that to show how the longer these confessions are repressed the larger and more difficult to deal with they become. The symbol closest to the prison door is the rose. The rose is a direct parallel to Pearl as they both serve as a stark contrast to the surrounding environment. The rose bush’s main function was to symbolize a moral blossom in the story as it shows that justice will eventually prevail. The rose bush also reflects the moral values in proportion to the nature. Because within the bonds of the nature everything acts in a way than what it is really like and what it should do by its nature without resisting to its essential needs. But civilized man especially puritans rejected the mostly part of human needs like enjoys and spices of the life especially sexuality. But to deny means nothing because you can change nothing by denying it or covering the truth. So the roses symbolized normally passions and desires thus we can deduce that here it symbolizes how the freedom of the human nature is imprisoned by the conventional wisdom. Under this circumstance the nature will resist to the later doctrines...
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...various amounts of dinosaurs during the time. Later on in the Cretaceous period, dinosaurs stayed closes within their family of species, no longer developing any new ones. The once peaceful, yet dangerous species of dinosaurs soon came to an end. This occurred when a meteor struck the land, wiping out the whole entire population of dinosaurs. However, due to this extinction, a new rise of species had risen, these species are known as mammals. They had lived alongside the dinosaurs all along, but now they could evolve into larger creatures since they were so small in size, almost mouse like. They also were able to create a variety of new generations of species all over the supercontinent. The meteor that killed the dinosaurs landed near the Gulf of Mexico and went 43,000 mph and spanned 6 miles wide. When the meteor hit the earth, it left an enormous crater that measured 24 miles deep and 125 miles wide. The impact destroyed not just the dinosaurs, but also the forests and landscapes of the majority of North America due to its massive shock wave. Many of the species went extinct after this meteor hit earth, the species that went extinct were the dinosaurs, ammonites, pterosaurs, and some plant groups. The meteor was very devastating, but did not wipe out all of the animals on earth which were, frogs, fish, turtles, birds, and mammals. In conclusion, dinosaurs evolved from a rather small, reptile like species, known as the archosaurs. This species was spread all around the Pangea...
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...asteroids take them across the paths of the planets. Asteroids are smaller than a planet but larger than a meteoroid, which is a small interplanetary object also in orbit around the Sun. If a portion of a meteoroid or other object survives the entry through the Earth’s atmosphere and reaches the Earth’s surface it is referred to as a meteorite. A meteor, also known as a shooting star, is a streak of light produced by a meteoroid that burns away in the Earth’s atmosphere. When their orbit brings them close to the sun, gigantic balls of ice and rock or comets, form a tail of dust and gas while being heated by the Sun’s rays. Scientists believe that the extinction of dinosaurs, nearly 66 million years ago, was the result of a large meteorite striking what today is Mexico’s Yucatan Peninsula. In 1908, a fragment of an asteroid or comet exploded in Earth’s atmosphere above Tunguska, Russia. The “Tunguska event”, the blast caused by the explosion, knocked down an estimated 80 million trees over 830 square miles. On February 15, 2013, just 3,000 miles west of Tunguska in western Siberia, a 10 ton meteor entered the Earth’s atmosphere. The meteor exploded with the force of an atomic bomb....
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...The 2001 film “Evolution”, is an entertaining film about an alien species being introduced to earth via meteor. However, this film seems to contain a copious amount scientific inaccuracies. For example, when the meteor is traveling through space, the movie presents the meteor rushing towards Earth with sound. However, space is a vacuum, so there for there would be no sound in space. To continue with the lengthy list, the meteor, after piercing the atmosphere of earth, still remains around the same size, not withering at all through the intense heat and weathering that would occur by doing so. Also, last time I checked, meteors did not contain explosives. I only bring that up because when it impacts, it creates a huge explosion, rather than the dirt or displaced earth that would be sent into the air. Not to mention, the fireman that was there on impact, was obviously still able to drive his car even though the meteor basically destroyed it, I mean, that is totally plausible, right? Now, when David Duchovny and Orlando Jones, who play the role of two college professors, arrive to be the first to investigate the rock, they try to take a sample of the rock to test it. When they break off the piece of rock, it starts to “bleed”. Really, a rock can bleed? Next thing you know, the blood will start transforming into a sentient species! So, after they collect some of the the “blood”, they bring it back to the lab for testing and inspecting. Now, it is my understanding that in order...
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...University of Phoenix Material Earth and Earth Materials I Worksheet From Visualizing Earth Science, by Merali, Z., and Skinner, B. J, 2009, Hoboken, NJ: Wiley. Copyright 2009 by Wiley. Adapted with permission. Part 1 Complete the WileyPLUS® GeoDiscoveries Earth Drag and Drop from Chapter 1. Label and describe each letter in the space below. [pic] | | | | | | | | | | | | | | | | Part...
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...Layers of the Earth The planet earth was formed about 4.5 billion years ago, after the collapse of the super massive gaseous body. As time moved on, the earth cooled down and is still cooling, as of today. As a result of the cooling process, denser materials like iron and sulfur sank to the inside of the earth; whereas, lighter materials like silicates and water floated near the earth's surface. Coming to the topic of our discussion, our planet earth comprises several layers. Starting from the surface, there are four main layers; namely, the crust, the mantle, the outer core, and the inner core. The pressure and temperature increase tremendously when one goes from the outer layers to the inner layers. Let's take a look at each of them individually. The Crust The crust or the lithosphere is the outermost layer of the earth made up of silicate rock materials. It makes up only about one percent of the earth and is the thinnest layer in comparison to the remaining three layers. Most earthquakes occur in the crust, and the average recorded temperature is 870 °C. The thickness and the composition of the earth's crust vary in the land and the ocean. For example; the continental crust is about 32 kilometers thick and composed of lighter materials like granite, quartz, and feldspar. Whereas, the oceanic crust measures about 10 kilometers and is mostly made up of basalt. The Mantle The mantle, the largest layer of the earth, is made up of iron, aluminum, calcium, magnesium...
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...that, with its size and if it had entered our atmosphere, it could have easily destroyed a city the size of New York without a trace. In both situations had we detected these asteroids with enough advance notice, we could have at least been prepared or some contingency plan in place. Alas our current NEO or Near Earth Objects, detection methods are not up to par. This is why we need to improve on our knowledge and current asteroid detection methods and systems or be doomed to be a planetary statistic. The Chelyabinsk Meteor in Russia was a lucky break. The speed the meteor enters entered the earth’s atmosphere was clocked at close to 43,000 mph. That’s close to 60 times the speed of sound. Thus, though the meteor did not touch down, the mid-air explosion was powerful enough to send a shock wave that injured over 1500 people and blow out windows over two miles away from the explosion point. The cause of the explosion was due to the breaking up of the meteor upon entry itself. Then there was asteroid MN2002 that was detected on June 17th 2002, three days...
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...The children resumed to eat with watchful glances as the nuns began to whisper the story .It went like this. A meteor had hit earth with few survivors remaining. I was at an orphanage three kilometers from the outskirts of Riga that cared for the children left behind .They also told me that another meteor was heading towards Earth and I needed to use my Russian intelligence skills to enter the military base and stop it. Our conversation ended abruptly when one of the children overheard the word meteor and began to sob. Immediately what followed was a chorus of sobs that were swiftly broken by the authoritarian voice of one of the...
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