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Electromagnetic Spectrum

This is meaning electric / magnetic / spectrum. Radio waves are used to transmit radio and television signals. Radio waves can send sounds at the speed of light. The range of radio waves can be less than a centimeter to tens or even hundredths of meters. Radio waves are produced by coherent motion of electrons such as the antenna of a radio transmitter. Coherent motion is the focused pattern of the waves, in this case. The radio waves are also produced by charged particles orbiting in magnetic fields. "As you already know we have FM and AM radio waves. Well an FM radio station at 100 on the radio dial (100 megahertz) would have a wavelength of about 400 meters" . A radio wave can also be used to create images such as p!.
             ortable TVs. Radio waves with wavelengths of a few centimeters can be transmitted from a satellite or airplane antenna. The reflected waves can be used to form an image of the ground in complete darkness or through clouds. This would be how spy satellites work or how we take pictures of the planets surface. Following after radio waves would be the magnificent microwave. "The microwave makes up a very small part of the spectrum although it is widely used throughout households across the world" . Microwaves range from a few centimeters to 0.1 cm. The wave is used to heat your food. It heats your food by bouncing back and fourth across the microwave walls. In the process it causes molecules (tiny particles) to vibrate and create friction, which in turn creates heat. Infrared is the region of the electromagnetic spectrum that extends from the visible region to about one millimeter (in wavelength) Infrared waves include thermal radiation. For example hot or burning charcoal may not give off light but it does send out radiation, it's just felt as heat. The infrared radiation can be measured by using detectors. Infrared has many applications in medicine or finding heat leaks in houses.


Essays Related to Electromagnetic Spectrum

1. Solar radiation spectrum and colar of light

... Light) *ultra violet-(280-370nm) *visible light-(370-760nm) *ultra red-(760-4000nm) Ultra Violet-helps the body healthy excessive UV damage the skin and eyes. A region of the electromagnetic spectrum that is of higher energy and shorter wavelength than visible light. Typical wavelengths of ultraviolet radiation range from 375 nm to 12.5 nm (12.5 x 10-9 m). Visble Light-can be detected ... ionizing radiation does not penetrate the earth's atmosphere. Solar radiation is commonly divided into various regions or bands on the basis of wavelength.Ultraviolet radiation is that part of the elec...

  • Word Count: 1270
  • Approx Pages: 5
  • Grade Level: Undergraduate

2. magnetic spectrum

Electromagnetic Spectrum An electromagnetic spectrum is the spectrum in which electromagnetic waves are sent out and in which they can be detected. The spectrum of electromagnetic waves includes the following waves: microwave, radar, satellite, UHF T.V., VHF T.V., FM radio, CB radio, amateur radio, and AM radio. ... of theses waves are called millimeter waves. They are the waves that cannot be. The only form of wave that can be seen in the electromagnetic spectrum is ultraviolet light. Some waves can be damaging to your health. For example a microwave can emit off radiation that can cause pro...

  • Word Count: 290
  • Approx Pages: 1
  • Grade Level: High School

3. Spectrum

Science Essay: Electromagnetic Spectrum There are many different types of electromagnetic waves in the electromagnetic spectrum. All of the waves are electromagnetic. The spectrum consists of these waves: Radio waves: They allow communication. Microwaves: They are used for cooking and also for mobile phones. Infra red: They are use for cooking, night vision, and ... recently they are being used to send information via mobile phones to other phones or computers to other devices. Visible light: For seeing, this is the only visible electromagnetic ... rays were. They were totally untrue, gamma ...

  • Word Count: 741
  • Approx Pages: 3
  • Grade Level: High School

4. Infrared Radiation

... go through Earth's atmosphere and be detected on Earth's surface. There are other forms of light, which we cannot see. Humans only see a very small part of the entire electromagnetic spectrum. The electromagnetic spectrum includes gamma rays, X-rays, ultraviolet, visible, infrared, microwaves, and radio waves. The difference between these types of radiation is their wavelength and frequency. Wavelength increases and frequency ... decreases from gamma rays to radio waves. All forms of radiation travel at the speed of light. Infrared radiation lies between the visible and microwave section...

  • Word Count: 708
  • Approx Pages: 3
  • Grade Level: High School

5. Introduction Ionizing Radiation

... that are transmitted in waves. This includes UVA, UVB, x-rays, gamma rays and cosmic rays. Ionizing radiation has high energy and shorter wavelengths than does the other side of the electromagnetic spectrum, which includes the lower energy, longer wavelengths, known as nonionizing radiation. Shorter and high-energy wavelengths mean that they can be harmful. Ionizing radiation can cause many kinds of illnesses ... , whereby the molecules that are inherited are disorganized causing damage to future generations, thus explaining the distinction between somatic and genetic damage. Gamma rays ...

  • Word Count: 915
  • Approx Pages: 4
  • Grade Level: High School

6. Fiber optics

... factors as quality and economics. Plastic optical fibers (POF) have the advantage of being made of cheaper materials than glass and to operate in the visible range of the spectrum. However, they show a high loss, and for that reason their applications are confined to short distance transmission. In spite of this, POF is widely used for medical ... Optical interconnections offer several advantages over metallic interconnections, they include: higher bandwidth; higher interconnection densities; lower crosstalk; crosstalk which is independent of data rate; inherent parallelism; immunity from...

  • Word Count: 3963
  • Approx Pages: 16
  • Has Bibliography
  • Grade Level: High School

7. Wireless Network Technology

... enable roaming over a broad area. The subject of wireless networking is a very broad subject, and therefore without getting too technical, I"ll give an abridged explanation how wireless LAN's work. Electromagnetic waves are sent to and from an access point, or base station. The access point acts like a hub, providing connectivity for the wireless computers. It can connect (or "bridge") the ... It sends and receives transmissions on a special radio frequency. The bandwidth is kept low to pass the information. There is a radio frequency filter that filters out all unwanted transmissions. S...

  • Word Count: 948
  • Approx Pages: 4
  • Has Bibliography

8. Problems...

... polymers. Light displays and integrated circuits, for example, could theoretically be manufactured using simple inkjet printer techniques. 6-10 Doped polyaniline is used as a conductor and for electromagnetic shielding of electronic circuits. Polyaniline is also manufactured as a corrosion inhibitor. Poly(ethylenedioxythiophene) (PEDOT) doped with polystyrenesulfonic acid is manufactured as an antistatic coating material to ... m-1). Shirakawa and Ikeda had noticed that when (CH)x films were exposed to bromine or chlorine at room temperature for a few minutes, there was a dramatic decr...

  • Word Count: 6720
  • Approx Pages: 27
  • Grade Level: High School

9. The Search for Extraterrestrial Intelligence

... use of Radio Telescope in investigating cosmos through installation of large antennas. There was some study in the middle of the 20th century on the possibility of using the microwave spectrum in this search. It was in the early 1960s that the first search using a 26-meter Radio Telescope was done. The interest was increased and the Soviet Union carried out ... by this university. Last year, March 2014, UC Berkely started an all-sky survey, using the Arecibo Radio Telescope. It was in the early 1980s that Paul Horowitz, a physicist, proposed a spectrum analyzer. This would reach for SET...

  • Word Count: 2003
  • Approx Pages: 8
  • Has Bibliography
  • Grade Level: Undergraduate

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