Electro-Magnetic Radiation Introduction All objects in our universe give off light, or electro-magnetic radiation. The particle of light is called the Photon. It is characteristics of both a wave and a particle. Photons are characterized by their energy and their wavelength, or their frequency...

The theory behind ultrasound for treating knee osteoartritis is that it is used as a passive modality; a supplement to the primary treatment (e.g. exercise). Passive modalities are typically used to relax the patient as a distraction from pain, and/or to warm muscles for exercise. Ultrasound equipm...

X-rays are used in many ways. The most common is to take X-rays of people. Dentists used it to check for weakenings in the teeth, and doctors use it to look at broken bones. Although X-rays are very helpful they can be harmful too. If you're over exposed to them they can deteriorate yo...

Global warming is a very dangerous problem in our world today. Responsible, and potentially responsible, for new diseases, health problems, and land loss, this problem deserves more attention than it is currently receiving. Presently, scientists believe that human activities are responsible for...

An ultrasound is a technique that uses sound waves to study hard to reach body areas. The first record of ultrasounds, for medical use, wasn't until during World War II when they used sound waves for the underwater detection of submarines. They detected the submarines by shooting sound waves ...

Laser is an acronym for light amplification by stimulated emission of radiation. In the last century many types of lasers have been used for many different applications from welding to surgery to military and even many uses in every day life by harnessing the principles of light and stimulate...

Chapter 1 I awoke. There was a crash on the main deck. I heard a loud crack from above. I ran up the stairs and what I saw shocked me. The small wooden boat was completely in flames! "Help, help, somebody please!" I slowly moved toward the sound being careful not to get ...

LIGHT: A FUNDAMENTAL FORCE IN OUR WORLD If asked what light is, one could say that it's one of the most basic elements of our world and our universe as we perceive it. It is through sight that we receive 90% of our information. It is through the use of telescopes aiding the naked e...

Anonymous Novel March 17, 2000 Abortion As long as history can tell man has though of life as precious, as the ultimate sacrifice to give up, the ultimate gift to give, and the ultimate crime to take away. Laws have been placed in every nation against murder and the evil that it holds. Throug...

Don't put that in your ear!!! How many times have you heard that when you were young? Well there is a very good reason you should be careful with our ears. Not only are they a means of getting important information (like a physics lecture) but they also are involved in your balance and are a ...

The greenhouse effect, as defined in the dictionary, is the effect produced as greenhouse gases allow incoming solar radiation to pass through the Earth's atmosphere, but prevent most of the outgoing infrared radiation from the surface and lower atmosphere from escaping into outer space. Even thoug...

Global Warming is something that has been going on now for a long time. Over the years scientists have been telling people, that all the pollutants that we put in the air were doing damage to the earth and the ozone. Some scientists disagreed with that statement and because of that there was nothing...

Hurricanes occur in the tropical areas of the world, in the latitudes of between 5 to 15o N and S. For a hurricane to develop a sustained seas surface temperature of at least 26.5oC to a depth of 70 m is needed otherwise there is not enough humidity in the atmosphere. The first sign of hurricane ge...

At nine fifteen on august sixth in 1945, an atom bomb of fifteen kilotons was dropped on Hiroshima. It was detonated one thousand, eight hundred feet over the ground. The plane that dropped the bomb was the Enola Gay aircraft bomber. The same thing happened on August ninth over Nagasaki. The fatali...

Using Irradiation to Make Food Safer for Consumers In the world today, there is a limited access to fresh and uncontaminated food. Gunjan Sihna, of Popular Science, reports that "The U. S. Centers of Disease Control estimates 6.5 million confirmed cases and more than 25 million additional u...

Hurricanes, cyclones, and typhoons are a major hazard in the Tropics. Every year, some 80 occurrences claim, on average, 20 000 lives and cause immense damage to property, natural vegetation, and shipping. A hurricane is a large rotating storm around a centre of very low pressure with values of...

Today, scientist argue over the consequences of global warming. Scientist say that the heating of the atmosphere can influence many health problems. Some of the related problems due to global warming are death to heat waves and other climate changes, and infectious diseases. With the atmosphe...

Electromagnetic Radiation Electromagnetic radiation is defined as "the emission and transmission of energy in the form of electromagnetic waves" (Chang, pp. 246). An electromagnetic wave consists of two waves at perpendicular planes, on representing the electrical field while the ot...

The Atmosphere The dramatic appearance of Saturn stems mainly from the spectacular rings. The atmosphere looks much less dramatic. The clouds of Saturn are much less colorful than those of Jupiter. This is because the composition of Saturn's atmosphere includes more sulfur. The atmosphere of Sat...

World Geography 3202 Chapter 1 "Land form Patterns and Processes" 1. What is seismology? Is the study of earthquakes. 2. List the zones of the earth. For each zone state the thickness, and two features of each. (A) Inner Core: 2700 km, solid and made mostly of iron wi...

Greenhouse gases (chlorofluorocarbons, carbon dioxide, methane, nitrous oxide, etc.)let heat in but stop it from going back out - like a windshield in a parked car. At our current rate of creating these gases by industry, cars and burning fossil fuels, scientists predict a temperature increase o...

James Clerk Maxwell Introduction James Clerk Maxwell was a British physicist. Maxwell was born in Edinburgh, Scotland on November 13, 1831. He was educated at Edinburgh Academy from 1841 to 1847. He then entered the University of Edinburgh, and went on to study at the University of Cambridge ...

Sources of Energy Have you ever thought about how we get the energy to run the things we take for granite every single day. There are many sources of energy that that are used for transportation, heat, light, and the manufacturing of goods of all kinds. The development of scie...

The greenhouse effect being a natural phenomenon is directly affected by human activities such as new industrial processes, more extensive agriculture and a rapid increase in the world's population causing global warming. Greenhouse effect is like a "double jeopardy". Without the natural ...

Background Research Introduction A science project is an exciting adventure in which you search out the secrets of living things. By doing a project you can follow the footsteps of a scientist, and construct important discoveries about how living things carry out their vital activities. Experimen...