Science
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4,610 Essays on Science. Documents 1,381 - 1,410
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Eia Landfill Research Paper
Environmental Impact Assessment Research Investigation An Environmental Impact Assessment, otherwise known as an EIA, is a critical component to the development of any plan or project prior to its completion. The purpose of the EIA is to make sure that all possible environmental impacts are taken into account prior to the development of major projects, programs, plans, and so forth. I decided to investigate an EIA report on the development of a specific landfill/recycling program
Rating:Essay Length: 606 Words / 3 PagesSubmitted: November 18, 2014 -
Einstein's Dreams
Alan Lightman’s “Einstein’s Dreams” "For those of us who believe in physics, this separation between past, present, and future is only an illusion, however tenacious." Albert Einstein For sure, one of the most important and discussed man of the 20th century is Albert Einstein - may be the most eminent German Jew. And many were the authors trying to describe the life and deeds of this prominent man. But one surely differs from the
Rating:Essay Length: 604 Words / 3 PagesSubmitted: June 1, 2010 -
Einstien
In 1905, Einstein’s Theory of Special Relativity was proposed. The reason that it is so "special" is because it was part of the more complex and extensive Theory of General Relativity, which was published in 1915. His theory reshaped the world of physics when it contradicted all previous laws of motion erected by Galileo and Newton. By mathematically manipulating these previous laws of motion, physicists in the nineteenth century were able to explain such phenomena
Rating:Essay Length: 1,894 Words / 8 PagesSubmitted: February 14, 2010 -
Ejercicio Del Naúfrago
EJERCICIO DEL NAÚFRAGO. Posible solución: Esperar el barco que pasa cada tres meses, pero ¿Cómo sobrevivir? Como primera instancia no contemplaría la opción de construir una balsa que me permita salir de esa isla e ir a la opción más cercana, pues al estar tan alejada y a tantos kilómetros de la isla donde me encuentro, me llevaría meses llegar a ese otro lugar y no cuento con las dotaciones necesarias para resistir todo ese
Rating:Essay Length: 475 Words / 2 PagesSubmitted: May 13, 2015 -
El Nino
We live on an incredibly large planet. Even broader than the size of the planet are the amount of changes and relationships between humans, animals, environment, weather, and the affects of each. Many times with busy schedules and modern lifestyles we forget the interaction that goes on between any number of concepts or idea’s. We fail to realize that a specific weather occurrence in the Pacific Ocean can have an affect on every day life
Rating:Essay Length: 1,030 Words / 5 PagesSubmitted: May 13, 2010 -
Electricity
ELECTRICITY Voltage- Voltage is a measure of energy carried by a charge; it is the energy per unit charge. The proper name for voltage is potential difference. Voltage is supplied by the battery or power supply. It is this energy that makes the electrical current flow in a circuit by pushing the electrons around. Voltage is used up in the components of a circuit not the wires. Voltage is measured in Volts. It is measured
Rating:Essay Length: 326 Words / 2 PagesSubmitted: April 28, 2016 -
Electricity Report
Electricity was first researched by Thales of Miletos around 600BC. He conducted a few experiments on static electricity in which he believed that friction made amber become magnetized. Other than the fact that people knew that eels produced electric shocks, electricity was little more than an intellectual curiosity for over 2000 years. Until 1600 when someone from England discovered the lodestone effect when amber with static would attract small objects towards it. In the 18th
Rating:Essay Length: 607 Words / 3 PagesSubmitted: May 25, 2010 -
Electro Chemistry
ELECTRO CHEMISTRY For my article, I chose a subject known as Electro Chemistry. My Article is about a CEO of an electric car manufacturer, known as Tesla Sports Cars Inc., wanting to pass his responsibilities to a man whose owned stock in their company before they made it big. The CEO wants to start making these electric cars an everyday car to help bring pollutants down and help make a contribution to the prevention of
Rating:Essay Length: 258 Words / 2 PagesSubmitted: January 24, 2010 -
Electro Magnetic Spectrum
What happens when you take two natural wondering parallel lines and force them to turn whilst still parallel? In a two dimensional perspective you will see two overlapping waves with a positive and negative parabola opposite from one another. In reality we would see a spiral. Imagine that these lines are instead two of the smallest forms of energy known as a photon and they are spiraling each other. When you reach distances of
Rating:Essay Length: 1,826 Words / 8 PagesSubmitted: May 2, 2010 -
Electrochemistry: Electrode Potential
Abstract Chemical reactions can be used to produce electricity and electricity can be used to cause chemical reactions through oxidation-reduction reactions. The first part of the experiment measures the standard electrode potentials of five various half cells against the Cu2+(1M)|Cu half cell. The last three half cells are prepared through electrolysis. The electrode potentials of all reactions are positive which means that they are spontaneous. There is a significant percent difference from the theoretical and
Rating:Essay Length: 268 Words / 2 PagesSubmitted: November 20, 2009 -
Electromagnetic & Mechanic
turn led to Maxwell's equation. In this picture electromagnetic field is supposed to surround every electric charge and when the charge moves, the propagation of disturbance in the field was described by waves. The finite velocity of propagation of electromagnetic field was identified with the speed of light. In 1905, Einstein proposed special theory of relativity which recognized the speed of light , as having a special significance in being the maximum velocity attainable
Rating:Essay Length: 838 Words / 4 PagesSubmitted: January 11, 2010 -
Electromagnetic Waves
Electromagnetic Waves Although you might not know it you’re constantly surrounded by thousands of electromagnetic waves every day. Sunlight and x-rays are only two types of electromagnetic waves, other types are: radio wave, infrared rays, ultra-violet rays and gamma rays Nature of an electromagnetic wave Electric and magnetic fields are not made up of matter. An electromagnetic wave consists of an electric and magnetic field and doesn’t need a medium to exist. They are the
Rating:Essay Length: 895 Words / 4 PagesSubmitted: November 28, 2009 -
Electronic Structures
Page 1 Electronic structures We have mentioned that the electrons don't just orbit the nucleus in a haphazard way. They occupy energy levels or shells at different distances from the centre of the atom. Electrons always occupy the lowest available energy level. The lowest energy level (the one found nearest to the nucleus) can hold just two electrons. Some people refer to this as the first or innermost shell. The second energy level can hold
Rating:Essay Length: 1,810 Words / 8 PagesSubmitted: April 13, 2010 -
Electrons
The electron is a fundamental subatomic particle that carries a negative electric charge. It is a spin-Ѕ lepton that participates in electromagnetic interactions, and its mass is less than one thousandth of that of the smallest atom. Its electric charge is defined by convention to be negative, with a value of −1 in atomic units. Together with atomic nuclei, electrons make up atoms; their interaction with adjacent nuclei is the main cause of chemical bonding.
Rating:Essay Length: 511 Words / 3 PagesSubmitted: April 2, 2010 -
Electrons to Quarks
Subatomic Particles: from Electrons to Quarks Rakesh Mohan Hallen Electrons • Can an electron reverse its spin from +1/2 to -1/2 or vice versa? • Why is a magnetic field created by the flow of electrons? • How was an electron born? Why does it move around the nucleus? • Is an electron divisible into other particles? • From where do the electrons get the energy to revolve around the nucleus? • How is it
Rating:Essay Length: 355 Words / 2 PagesSubmitted: December 4, 2009 -
Electrophilic Addition
ELECTROPHILIC ADDITION PURPOSE The purpose of this lab is to learn how to synthesize 2-methyl-2-butene into 2-bromo-2-methylbutane using addition of hydrogen bromide. THEORY Chemical Compound Molecular Formula Molecular Weight Boiling Point Melting Point Density Amylene CH3CH=C(CH3)2 70.13 g/mol 36 oC -134 oC 0.662 g/ml Hydrobromic Acid HBr 80.91 g/mol 126 oC -11 oC 1.490 g/ml 2-Bromo-2-MethylButane C5H11Br 151.05 g/mol 107 oC 1.18 g/ml Sodium bicarbonate NaHCO3 84.007 g/mol Decomposes at melting point unknown 2.159 g/ml
Rating:Essay Length: 668 Words / 3 PagesSubmitted: December 2, 2009 -
Electrotechnology
Electrotechnology Lab Report Aim: To investigate and analyse single-phase transformers in a circuit Objectives: To determine the approximate equivalent circuit of a single-phase transformer so the transformer can be modelled, predicted and analysed. Equipment: • TecQuipment electrical machines teaching unit NE8010 or NE8013 • B-phase transformer (EMTU-TT01) • One Hameg HM-8115-2 Power meter • Wires Introduction and theory of Transformers: Transformers are simple, energy transfer devices that are widely used for power transmission. Depending on
Rating:Essay Length: 1,066 Words / 5 PagesSubmitted: December 15, 2009 -
Element Iron
Iron comes from the Latin word ferrum. From ferrum its symbol became Fe. The atomic number of iron is 26, and its atomic weight is 55.845. Iron is a magnetic, bendable, shiny white metallic element. Pure iron has a hardness that ranges from 4 to 5. It is soft and ductile. Iron can be easily magnetized at ordinary temperatures and at 790°C the magnetic property disappears. Pure iron melts at about 1535°C, boils at 2750°C,
Rating:Essay Length: 352 Words / 2 PagesSubmitted: April 20, 2010 -
Elements and Their Compounds
Elements and compounds are a result of the actions of the valence electrons. There are three types of bonds that I have learned about in the bonding comparison lab. These bonds include ionic, polar covalent, and non-polar covalent. Each of these bonds and the element compounds connected to them has individual solubility, conductivity, melting point, and volatility levels. The three element compounds that will follow are sodium chloride, sucrose, and p-dichlorobenzene. Sodium chloride is an
Rating:Essay Length: 309 Words / 2 PagesSubmitted: June 10, 2010 -
Elements of Successful Organizational Diversity Management
Elements of successful organizational diversity Management. Why is organizational diversity important? Historically, diversity in the workplace has been recognized as an employment equity issue. Now, however, diversity in the workplace is being recognized as a benefit that will contribute to an organization’s bottom line. Increased employee and customer satisfaction end up as increased productivity, all of which are measurable outcomes (Goff, 1998). Diversity goes beyond employment equity to nurturing an environment that values the differences
Rating:Essay Length: 1,605 Words / 7 PagesSubmitted: December 20, 2009 -
Elephant and Rhino Comparison
The white rhinoceros and the Asian elephant possess many similar characteristics, including the way they look, yet also possess many differences such as the two continents they live on. There are five living species of rhino (black, white, Indian, Javan and Sumatran) and only two of the elephant (African and the Asian). All are in jeopardy of extinction with their slow rate of breeding, poaching and in the rhinoceroses, their territorial behavior. Both of these
Rating:Essay Length: 1,119 Words / 5 PagesSubmitted: February 20, 2010 -
Elephants
People find lots of ways to entertain themselves. One might go to the movies or dine with friends. Some even go into the wild to enjoy nature. They enjoy seeing wildlife, trees, plants, streams and sneaking up on the animals to see them in their natural habitat. However, there are some people who enjoy sneaking up on the animals so they can kill them. Some people kill for food, and some kill for sport.
Rating:Essay Length: 450 Words / 2 PagesSubmitted: February 2, 2010 -
Elephants
People find lots of ways to entertain themselves. One might go to the movies or dine with friends. Some even go into the wild to enjoy nature. They enjoy seeing wildlife, trees, plants, streams and sneaking up on the animals to see them in their natural habitat. However, there are some people who enjoy sneaking up on the animals so they can kill them. Some people kill for food, and some kill for sport.
Rating:Essay Length: 450 Words / 2 PagesSubmitted: February 17, 2010 -
Elephants
People find lots of ways to entertain themselves. One might go to the movies or dine with friends. Some even go into the wild to enjoy nature. They enjoy seeing wildlife, trees, plants, streams and sneaking up on the animals to see them in their natural habitat. However, there are some people who enjoy sneaking up on the animals so they can kill them. Some people kill for food, and some kill for sport.
Rating:Essay Length: 450 Words / 2 PagesSubmitted: March 19, 2010 -
Elephants
Elephants should not be killed because they are one of the main reasons that people visit the foreign land of Africa. Africa is incredibly hot and is not the most intriguing place to go on your vacation. If there were no elephants the amount of tourists would significantly decrease. Twenty eight percent of all tourist come to see the elephants. In the movie “Ivory Wars” the narrator says “ One of the few attractions for
Rating:Essay Length: 659 Words / 3 PagesSubmitted: April 24, 2010 -
Eleutherodactylus
Eleutherodactylus p. planirostris, or more commonly the Greenhouse frog, is from the Leptodactylidae family. They were unintentionally introduced to Florida around 1875. Their numbers have continued to grow and they are now very common among South Florida with increasing inhabitants around the panhandle. Greenhouse frogs have a reddish-brown appearance with either dark blotches or 2 dark stripes down their backs. They are relatively small in size usually growing to about an inch to and inch
Rating:Essay Length: 457 Words / 2 PagesSubmitted: May 12, 2010 -
Elle
Reptiles Food No 1: Insects, Mealworm, Cricket & Silkworm (Live) Food No 2: Poultry, Whole Egg, and Day Old Chick (Live/Frozen) Food No 3: Rodents Mice, Rats (Live) Food No 4: Mammalian Pet Food, Dog Food Canned, Cat Food Canned & Monkey Chow (Canned) Food No 5: Mice/Rats (Live/Frozen) • These Food Groups Are Suitable For Lizards, Snakes, and Turtles & Frogs • Most Of The Above Food Groups Come In Sealed Bags •
Rating:Essay Length: 279 Words / 2 PagesSubmitted: April 12, 2010 -
Ellowishous
Written Article Report Brief Outline of Events in Article A seven car commuter, carrying 580 passengers, derailed, crashing into an apartment complex killing 56 people and injuring 417 others. The crash happened in western Japan near Amagasaki, west of Tokyo. Believed to be the worst train accident in four decades, two of the five derailed cars were flattened against the wall of the building. The train derailed at a curve after a straight in the
Rating:Essay Length: 2,092 Words / 9 PagesSubmitted: November 26, 2009 -
Em Radiation
electromagnetic radiation energy radiated in the form of a wave as a result of the motion of electric charges. A moving charge gives rise to a magnetic field, and if the motion is changing (accelerated), then the magnetic field varies and in turn produces an electric field. These interacting electric and magnetic fields are at right angles to one another and also to the direction of propagation of the energy. Thus, an electromagnetic wave is
Rating:Essay Length: 387 Words / 2 PagesSubmitted: May 19, 2010 -
Email
Email is the biggest evolutionary advance in communication in modern history. Ever since the internet first started, the way we communicate with each other changed. Instead of sitting down and writing a letter with pen and paper, we type it on the computer and send it via the internet and the receiver sees it when they sign online. Instead of calling someone on the phone, we can talk to them directly online via instant messaging,
Rating:Essay Length: 543 Words / 3 PagesSubmitted: January 4, 2010