Essays Tagged: "electromagnetic waves"

Color perception principles

Soon after the publication of Optics, physicists were able to show that visible light resulted from electromagnetic waves of a cetrain frequency. The area of the electro-magnetic spectrum that we see ...

(8 pages) 213 0 2.6 Mar/2002

Subjects: Science Essays > Biology > Human Biology

Radios, and how they work

munication in which intelligence is transmitted without wires from one point to another by means of electromagnetic waves. Early forms of communication over great distances were the telephone and the ... ld induces a current in another conductor placed in this changing magnetic field. This principle of electromagnetic induction is well known in the application of transformers, where an iron core is us ...

(12 pages) 120 0 2.6 Mar/1996

Subjects: Science Essays > Technology

Television, what it is, how it works (in term of physics) and its impact on society, including advantages and disadvantages.

earlier. It was 1873 when the Scottish scientist James Clerk Maxwell predicted the existence of the electromagnetic waves that would make it possible to transmit ordinary television broadcasts. In the ...

(5 pages) 97 0 4.5 Jan/2004

Subjects: Social Science Essays > Society and community

This essay is a biography along with the acheivements of Ernest Rutherford

893, he stayed for a fifth year to do research in physics. In this fifth year Rutherford found that electromagnetic waves could be detected even after they had passed through brick walls. This caused ...

(3 pages) 28 0 3.0 Feb/2004

Subjects: Science Essays > Chemistry

Research Paper on Electromagnetic Radiation

Electromagnetic WavesIf you stand in front of a campfire, even though you do not actually touch the ... onverts it to the particular program that you hear or see. These are examples of the process called electromagnetic radiation, whereby energy is carried across space. Ordinarily, the energy travels ou ... off tiny particles, or corpuscles, that bounce off objects and are detected when they hit the eye ("Electromagnetic Radiation", 1 ). Others thought light was like the waves formed in a pond when a sto ...

(15 pages) 84 0 4.0 May/2004

Subjects: Science Essays

Albert Einstein and his discoverys

of the structure of light called Quantum Theory of Light. People thought light consisted of smooth electromagnetic waves, but found it was made up of particles of energy called photons. He showed whe ...

(1 pages) 31 0 4.8 Jun/2004

Subjects: Science Essays > Physics

WAVES

ies energy from one place to another. There are so many types. For example there are mechanical and electromagnetic waves. A mechanical wave is a wave that requires a medium. A medium is the material ... a wave that requires a medium. A medium is the material through which a mechanical wave travels. An electromagnetic wave is a wave that consists of electric and magnetic fields and does not require a ...

(3 pages) 60 1 4.2 Mar/2005

Subjects: Science Essays

TELEVISION

Television is a device that can display moving images and sound through receiving electromagnetic waves. Today television means more than a device; it represents a global media that ...

(1 pages) 382 0 3.0 Jul/2005

Subjects: Science Essays > Technology

Heinrich Rudolf Hertz

are the simplest practical antennas. Through experimentation, he proved that transverse free space electromagnetic waves can travel over some distance. With his apparatus configuration, the electric ...

(1 pages) 12 0 3.0 Apr/2007

Subjects: Science Essays > Physics

First Love

ontrollers, miners and law enforcement.How Radar Works Radar involves the transmission of pulses of electromagnetic waves by a directional antenna. Some of these pulses are reflected back to the anten ...

(4 pages) 11 0 0.0 Jul/2001

Subjects: Businesss Research Papers

Convection

etween two objects that are in contact with each other. Radiation is the transfer of energy through electromagnetic waves. In this lab we conducted four separate experiments. The experiments test to s ...

(2 pages) 1742 0 3.0 Sep/2001

Subjects: Science Essays > Chemistry

Long Physics Notes: Communications and Space: Not all dot points covered in this assignment

The World Communicates:1.1 Recall two essential properties that distinguish electromagnetic waves from all other waves.1) Electromagnetic waves do not require a medium to trave ... ed by electric and magnetic fields oscillating together but perpendicular to each other so that the electromagnetic wave moves in a direction perpendicular to both of the fields [this is caused by acc ... the fields [this is caused by accelerating charges, whereas other waves rely on vibrations].2) All electromagnetic waves travel at the speed of light - 3.0 x 108 ms-1. Based on the formula v=f&Lambda ...

(10 pages) 20 0 2.3 Jul/2007

Subjects: Science Essays > Physics

History of Telecommunication and Networking

is process involved using smoke signals, drums or heliograph. But today, it involves the sending of electromagnetic waves by electronic transmitters. There are three elements of telecommunication. A t ... istance of up to 21 kilometres. They both thought of their device as an improvement to the existing electromagnetic telegraph. In 1866 the first transatlantic telegraph cable was completed which allow ...

(3 pages) 42 0 3.0 Oct/2007

Subjects: Science Essays > Computer Science

Electromagnetic Radiation

What is Electromagnetic Radiation?? The transfer of energy through outer free space or through a material me ... of electromagnetic waves. Also a vacuum is the only perfectly transparent medium.The main types of electromagnetic radiation, in order of increasing wavelength, are gamma rays, x-rays, ultraviolet li ... et light, visible light, infrared light, microwaves, and radio waves. These and other many types of electromagnetic radiation travel at the same speed, which is the speed of light (186,282mps), but th ...

(1 pages) 1214 0 5.0 Feb/2008

Subjects: Science Essays > Physics

Electromagnetic Radiation

What is Electromagnetic Radiation?? The transfer of energy through outer free space or through a material me ... of electromagnetic waves. Also a vacuum is the only perfectly transparent medium.The main types of electromagnetic radiation, in order of increasing wavelength, are gamma rays, x-rays, ultraviolet li ... et light, visible light, infrared light, microwaves, and radio waves. These and other many types of electromagnetic radiation travel at the same speed, which is the speed of light (186,282mps), but th ...

(1 pages) 365 0 0.0 Feb/2008

Subjects: Science Essays > Physics

Electromagnetic Radiation

What is Electromagnetic Radiation?? The transfer of energy through outer free space or through a material me ... of electromagnetic waves. Also a vacuum is the only perfectly transparent medium.The main types of electromagnetic radiation, in order of increasing wavelength, are gamma rays, x-rays, ultraviolet li ... et light, visible light, infrared light, microwaves, and radio waves. These and other many types of electromagnetic radiation travel at the same speed, which is the speed of light (186,282mps), but th ...

(1 pages) 626 0 5.0 Feb/2008

Subjects: Science Essays > Physics

Effects Of Mobile Phone Radiation

n have on humans in the short and long term future.When you call someone on your Nokia or Ericcson, electromagnetic waves are being sent out. Electromagnetic waves have many different frequencies, one ... many of the transmission towers on the islands. In Wichita, Kansas, there was an airfield witch had electromagnetic emitting devices, researchers from a university found that those exposed to the most ...

(4 pages) 63 0 4.0 Feb/2008

Subjects: Science Essays > Chemistry

FIBER OPTIC TECHNOLOGY

range, transmission over fiber utilizes frequencies a million times higher. The difference between electromagnetic waves used in coaxial cables and light waves used in fiber optic is the frequency.Tr ...

(9 pages) 34 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry

Wireless Technology

reless Technology The Beginning/Background: ?A gentleman named Heinrich Hertz was the discoverer of electromagnetic waves, the technical foundation of radio itself. By 1880, Hertz had demonstrated a p ...

(4 pages) 49 0 5.0 Feb/2008

Subjects: Social Science Essays > Psychology > Psychological Theories & Authors

Electromagnetism and DSL

In the electronics world everybody is using electromagnetism in some way. All signals are electromagnetic, so in the electrical engineering environment electromagnetism is a leading topic of ... tal Scribers Line Technology). During the interview I asked Mr. Trennison about the relationship of electromagnetic theory in the engineering work environment, also about contemporary issues that the ...

(3 pages) 8 0 0.0 Feb/2008

Subjects: Science Essays > Technology