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30:35
Electromagnetic Spectrum Basics
Electromagnetic Spectrum Basics
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5:20
The Electromagnetic Spectrum
The Electromagnetic SpectrumThe Electromagnetic Spectrum
http://www.facebook.com/ScienceReason ... Science@NASA: EMS (Episode 1) - An Introduction To The Electromagnetic Spectrum --- Please SUBSCRIBE to Science & R...
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32:07
NASA - Tour of the Electromagnetic Spectrum
NASA - Tour of the Electromagnetic SpectrumNASA - Tour of the Electromagnetic Spectrum
Videos created and shared by NASA. Posted here for ease of access. More information from NASA about the EMS can be found here: http:--missionscience.nasa.gov...
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4:16
The Electromagnetic Spectrum Song - by Emerson & Wong Yann (Singapore)
The Electromagnetic Spectrum Song - by Emerson & Wong Yann (Singapore)The Electromagnetic Spectrum Song - by Emerson & Wong Yann (Singapore)
Emerson Foo & Wong Yann made an original music video on the Electromagnetic Spectrum.
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9:55
Electromagnetic Spectrum
Electromagnetic SpectrumElectromagnetic Spectrum
Science Help at Brightstorm! http://brightstorm.com/science Understanding the different parts of the electromagnetic spectrum.
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3:24
Electromagnetic Spectrum Song
Electromagnetic Spectrum SongElectromagnetic Spectrum Song
Electromagnetic Spectrum Song. Here is a video I created for my 6th grade science students to help them study.I hope you enjoy. Mr. Worldwide C.Parr So list...
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19:09
Science in Focus Electromagnetic Spectrum
Science in Focus Electromagnetic SpectrumScience in Focus Electromagnetic Spectrum
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2:15
The Electromagnetic Spectrum
The Electromagnetic SpectrumThe Electromagnetic Spectrum
Visible light is represented by only 1 inch on an electromagnetic scale of over 2000 miles. (from "The Universe" series about Nebulas)
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3:22
Electromagnetic Spectrum
Electromagnetic SpectrumElectromagnetic Spectrum
Today, Molly takes you on an adventures through the electromagnetic spectrum! Click here for show credits: http://bit.ly/qgNwxb twitter: @rocketboom facebook...
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7:51
Electromagnetic Spectrum, Critical to our Nation's Security
Electromagnetic Spectrum, Critical to our Nation's SecurityElectromagnetic Spectrum, Critical to our Nation's Security
Many nations around the world, including the United States, are facing a challenge regarding the use of the electromagnetic spectrum. The challenge involves ...
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2:57
The Electromagnetic Spectrum
The Electromagnetic SpectrumThe Electromagnetic Spectrum
The Sun is constantly broadcasting information about its activity in the form of light waves. Find out why there's more to see than what meets the eye... www...
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3:35
Electromagnetic Spectrum Animation
Electromagnetic Spectrum AnimationElectromagnetic Spectrum Animation
Here are the different types of radiation in the EM spectrum, in order from lowest energy to highest: Radio: Yes, this is the same kind of energy that radio ...
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20:12Lecture 5a (The Electromagnetic Spectrum)
Lecture 5a (The Electromagnetic Spectrum)Lecture 5a (The Electromagnetic Spectrum)
This video gives an introduction to the Electromagnetic Spectrum and its many different components and properties. It also shows the origin of these waves in...
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5:29The Electromagnetic Spectrum: looking through galactic space clouds
The Electromagnetic Spectrum: looking through galactic space cloudsThe Electromagnetic Spectrum: looking through galactic space clouds
Explains how astronomers use radiation from across the electromagnetic spectrum to reveal the secrets of our universe. Learn even more on Teaching Astronomy ...
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http://wn.com/Science_in_Focus_Electromagnetic_Spectrum
Electromagnetic Spectrum Basics
- Order: Reorder
- Duration: 30:35
- Updated: 19 Aug 2013
Electromagnetism is all around us in world in which we live. We rely on electromagnetic waves to heat our food, carry cell phone calls, and even bring music ...
http://wn.com/Electromagnetic_Spectrum_Basics
Electromagnetism is all around us in world in which we live. We rely on electromagnetic waves to heat our food, carry cell phone calls, and even bring music ...
- published: 16 Aug 2011
- views: 168376
- author: NewGuardNetwork
The Electromagnetic Spectrum
- Order: Reorder
- Duration: 5:20
- Updated: 14 Aug 2013
http://www.facebook.com/ScienceReason ... Science@NASA: EMS (Episode 1) - An Introduction To The Electromagnetic Spectrum --- Please SUBSCRIBE to Science & R...
http://wn.com/The_Electromagnetic_Spectrum
http://www.facebook.com/ScienceReason ... Science@NASA: EMS (Episode 1) - An Introduction To The Electromagnetic Spectrum --- Please SUBSCRIBE to Science & R...
- published: 01 Aug 2010
- views: 310028
- author: Best0fScience
NASA - Tour of the Electromagnetic Spectrum
- Order: Reorder
- Duration: 32:07
- Updated: 04 Aug 2013
Videos created and shared by NASA. Posted here for ease of access. More information from NASA about the EMS can be found here: http:--missionscience.nasa.gov...
http://wn.com/NASA_Tour_of_the_Electromagnetic_Spectrum
Videos created and shared by NASA. Posted here for ease of access. More information from NASA about the EMS can be found here: http:--missionscience.nasa.gov...
- published: 15 Dec 2012
- views: 2802
- author: SpaceScienceSarah
The Electromagnetic Spectrum Song - by Emerson & Wong Yann (Singapore)
- Order: Reorder
- Duration: 4:16
- Updated: 18 Aug 2013
Emerson Foo & Wong Yann made an original music video on the Electromagnetic Spectrum.
http://wn.com/The_Electromagnetic_Spectrum_Song_by_Emerson_Wong_Yann_Singapore
Emerson Foo & Wong Yann made an original music video on the Electromagnetic Spectrum.
- published: 04 Dec 2007
- views: 891830
- author: phyisfun
Electromagnetic Spectrum
- Order: Reorder
- Duration: 9:55
- Updated: 08 Aug 2013
Science Help at Brightstorm! http://brightstorm.com/science Understanding the different parts of the electromagnetic spectrum.
http://wn.com/Electromagnetic_Spectrum
Science Help at Brightstorm! http://brightstorm.com/science Understanding the different parts of the electromagnetic spectrum.
- published: 10 Sep 2010
- views: 24773
- author: Brightstorm
Electromagnetic Spectrum Song
- Order: Reorder
- Duration: 3:24
- Updated: 18 Aug 2013
Electromagnetic Spectrum Song. Here is a video I created for my 6th grade science students to help them study.I hope you enjoy. Mr. Worldwide C.Parr So list...
http://wn.com/Electromagnetic_Spectrum_Song
Electromagnetic Spectrum Song. Here is a video I created for my 6th grade science students to help them study.I hope you enjoy. Mr. Worldwide C.Parr So list...
- published: 10 Apr 2011
- views: 104767
- author: ParrMr
Science in Focus Electromagnetic Spectrum
- Order: Reorder
- Duration: 19:09
- Updated: 15 Nov 2012
http://wn.com/Science_in_Focus_Electromagnetic_Spectrum
The Electromagnetic Spectrum
- Order: Reorder
- Duration: 2:15
- Updated: 16 Aug 2013
Visible light is represented by only 1 inch on an electromagnetic scale of over 2000 miles. (from "The Universe" series about Nebulas)
http://wn.com/The_Electromagnetic_Spectrum
Visible light is represented by only 1 inch on an electromagnetic scale of over 2000 miles. (from "The Universe" series about Nebulas)
- published: 06 Apr 2008
- views: 250538
- author: sparkleystitch
Electromagnetic Spectrum
- Order: Reorder
- Duration: 3:22
- Updated: 17 Aug 2013
Today, Molly takes you on an adventures through the electromagnetic spectrum! Click here for show credits: http://bit.ly/qgNwxb twitter: @rocketboom facebook...
http://wn.com/Electromagnetic_Spectrum
Today, Molly takes you on an adventures through the electromagnetic spectrum! Click here for show credits: http://bit.ly/qgNwxb twitter: @rocketboom facebook...
- published: 21 Jul 2011
- views: 41758
- author: ROCKETBOOM
Electromagnetic Spectrum, Critical to our Nation's Security
- Order: Reorder
- Duration: 7:51
- Updated: 09 Jun 2013
Many nations around the world, including the United States, are facing a challenge regarding the use of the electromagnetic spectrum. The challenge involves ...
http://wn.com/Electromagnetic_Spectrum,_Critical_to_our_Nation's_Security
Many nations around the world, including the United States, are facing a challenge regarding the use of the electromagnetic spectrum. The challenge involves ...
- published: 05 Sep 2008
- views: 6852
- author: tpkidd3
The Electromagnetic Spectrum
- Order: Reorder
- Duration: 2:57
- Updated: 07 Aug 2013
The Sun is constantly broadcasting information about its activity in the form of light waves. Find out why there's more to see than what meets the eye... www...
http://wn.com/The_Electromagnetic_Spectrum
The Sun is constantly broadcasting information about its activity in the form of light waves. Find out why there's more to see than what meets the eye... www...
- published: 08 Nov 2012
- views: 3937
- author: NOVA PBS
Electromagnetic Spectrum Animation
- Order: Reorder
- Duration: 3:35
- Updated: 19 Aug 2013
Here are the different types of radiation in the EM spectrum, in order from lowest energy to highest: Radio: Yes, this is the same kind of energy that radio ...
http://wn.com/Electromagnetic_Spectrum_Animation
Here are the different types of radiation in the EM spectrum, in order from lowest energy to highest: Radio: Yes, this is the same kind of energy that radio ...
- published: 29 May 2012
- views: 9253
- author: Animation Devastation
Lecture 5a (The Electromagnetic Spectrum)
- Order: Reorder
- Duration: 20:12
- Updated: 08 Jun 2013
This video gives an introduction to the Electromagnetic Spectrum and its many different components and properties. It also shows the origin of these waves in...
http://wn.com/Lecture_5a_The_Electromagnetic_Spectrum
This video gives an introduction to the Electromagnetic Spectrum and its many different components and properties. It also shows the origin of these waves in...
- published: 10 Mar 2013
- views: 166
- author: Viken Kiledjian
The Electromagnetic Spectrum: looking through galactic space clouds
- Order: Reorder
- Duration: 5:29
- Updated: 30 Jul 2013
Explains how astronomers use radiation from across the electromagnetic spectrum to reveal the secrets of our universe. Learn even more on Teaching Astronomy ...
http://wn.com/The_Electromagnetic_Spectrum_looking_through_galactic_space_clouds
Explains how astronomers use radiation from across the electromagnetic spectrum to reveal the secrets of our universe. Learn even more on Teaching Astronomy ...
- published: 01 Nov 2012
- views: 2207
- author: Institute of Physics
Electromagnetic Spectrum: Radio Waves
- Order: Reorder
- Duration: 3:58
- Updated: 01 Feb 2014
... Science@NASA: EMS Electromagnetic Spectrum (Episode 2) - Radio Waves
The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The electromagnetic spectrum of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object.
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Please SUBSCRIBE to Science Reason:
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MEASURING THE ELECTROMAGNETIC SPECTRUM
The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes - visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation.
Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays.
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RADIO WAVES
Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Like all other electromagnetic waves, they travel at the speed of light. Naturally-occurring radio waves are made by lightning, or by astronomical objects. Artificially-generated radio waves are used for fixed and mobile radio communication, broadcasting, radar and other navigation systems, satellite communication, computer networks and innumerable other applications.
Different frequencies of radio waves have different propagation characteristics in the Earths atmosphere long waves may cover a part of the Earth very consistently, shorter waves can reflect off the ionosphere and travel around the world, and much shorter wavelengths bend or reflect very little and travel on a line of sight.
Discovery and utilization: Radio waves were first predicted by mathematical work done in 1865 by James Clerk Maxwell. Maxwell noticed wavelike properties of light and similarities in electrical and magnetic observations. He then proposed equations, that described light waves and radio waves as waves of electromagnetism that travel in space. In 1887, Heinrich Hertz demonstrated the reality of Maxwells electromagnetic waves by experimentally generating radio waves in his laboratory. Many inventions followed, making practical the use of radio waves to transfer information through space.
Propagation: The study of electromagnetic phenomena such as reflection, refraction, polarization, diffraction and absorption is of critical importance in the study of how radio waves move in free space and over the surface of the Earth. Different frequencies experience different combinations of these phenomena in the Earths atmosphere, making certain radio bands more useful for specific purposes than others.
Radio communication: In order to receive radio signals, for instance from AM/FM radio stations, a radio antenna must be used. However, since the antenna will pick up thousands of radio signals at a time, a radio tuner is necessary to tune in to a particular frequency (or frequency range). This is typically done via a resonator (in its simplest form, a circuit with a capacitor and an inductor). The resonator is configured to resonate at a particular frequency (or frequency band), thus amplifying sine waves at that radio frequency, while ignoring other sine waves. Usually, either the inductor or the capacitor of the resonator is adjustable, allowing the user to change the frequency at which it resonates.
In medicine: Radio frequency (RF) energy has been used in medical treatments for over 75 years generally for minimally invasive surgeries and coagulation, including the treatment of sleep apnea.
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http://wn.com/Electromagnetic_Spectrum_Radio_Waves
... Science@NASA: EMS Electromagnetic Spectrum (Episode 2) - Radio Waves
The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The electromagnetic spectrum of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object.
---
Please SUBSCRIBE to Science Reason:
•
•
•
---
MEASURING THE ELECTROMAGNETIC SPECTRUM
The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes - visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation.
Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays.
• ...
---
RADIO WAVES
Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Like all other electromagnetic waves, they travel at the speed of light. Naturally-occurring radio waves are made by lightning, or by astronomical objects. Artificially-generated radio waves are used for fixed and mobile radio communication, broadcasting, radar and other navigation systems, satellite communication, computer networks and innumerable other applications.
Different frequencies of radio waves have different propagation characteristics in the Earths atmosphere long waves may cover a part of the Earth very consistently, shorter waves can reflect off the ionosphere and travel around the world, and much shorter wavelengths bend or reflect very little and travel on a line of sight.
Discovery and utilization: Radio waves were first predicted by mathematical work done in 1865 by James Clerk Maxwell. Maxwell noticed wavelike properties of light and similarities in electrical and magnetic observations. He then proposed equations, that described light waves and radio waves as waves of electromagnetism that travel in space. In 1887, Heinrich Hertz demonstrated the reality of Maxwells electromagnetic waves by experimentally generating radio waves in his laboratory. Many inventions followed, making practical the use of radio waves to transfer information through space.
Propagation: The study of electromagnetic phenomena such as reflection, refraction, polarization, diffraction and absorption is of critical importance in the study of how radio waves move in free space and over the surface of the Earth. Different frequencies experience different combinations of these phenomena in the Earths atmosphere, making certain radio bands more useful for specific purposes than others.
Radio communication: In order to receive radio signals, for instance from AM/FM radio stations, a radio antenna must be used. However, since the antenna will pick up thousands of radio signals at a time, a radio tuner is necessary to tune in to a particular frequency (or frequency range). This is typically done via a resonator (in its simplest form, a circuit with a capacitor and an inductor). The resonator is configured to resonate at a particular frequency (or frequency band), thus amplifying sine waves at that radio frequency, while ignoring other sine waves. Usually, either the inductor or the capacitor of the resonator is adjustable, allowing the user to change the frequency at which it resonates.
In medicine: Radio frequency (RF) energy has been used in medical treatments for over 75 years generally for minimally invasive surgeries and coagulation, including the treatment of sleep apnea.
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- published: 01 Feb 2014
- views: 0
Electromagnetic Spectrum
- Order: Reorder
- Duration: 24:36
- Updated: 19 Jun 2013
Video clips for the classroom looking at how science is used in the modern world. The programme includes items on the use of ultraviolet light in eye surgery...
http://wn.com/Electromagnetic_Spectrum
Video clips for the classroom looking at how science is used in the modern world. The programme includes items on the use of ultraviolet light in eye surgery...
- published: 19 Jun 2013
- views: 34
- author: Lammas Science
Electromagnetic Spectrum: Microwaves
- Order: Reorder
- Duration: 3:23
- Updated: 18 Aug 2013
http://www.facebook.com/ScienceReason ... Science@NASA: EMS Electromagnetic Spectrum (Episode 3) - Microwaves Electromagnetic radiation which has a longer wa...
http://wn.com/Electromagnetic_Spectrum_Microwaves
http://www.facebook.com/ScienceReason ... Science@NASA: EMS Electromagnetic Spectrum (Episode 3) - Microwaves Electromagnetic radiation which has a longer wa...
- published: 16 Oct 2010
- views: 45986
- author: Best0fScience
electro magnetic spectrum song
- Order: Reorder
- Duration: 4:18
- Updated: 06 Jul 2013
school stuff.
http://wn.com/electro_magnetic_spectrum_song
PS4B - Electromagnetic Radiation
- Order: Reorder
- Duration: 7:30
- Updated: 25 Jul 2013
In this video Paul Andersen describes some of the properties of electromagnetic radiation. The electromagnetic spectrum varies by wavelength from radio waves...
http://wn.com/PS4B_Electromagnetic_Radiation
In this video Paul Andersen describes some of the properties of electromagnetic radiation. The electromagnetic spectrum varies by wavelength from radio waves...
- published: 04 Jun 2013
- views: 864
- author: bozemanbiology
AQA GCSE Science and P1 - The Electromagnetic Spectrum
- Order: Reorder
- Duration: 13:42
- Updated: 11 Aug 2013
A GCSE revision video explaining the features and uses of the electromagnetic spectrum of waves. Check the website for a complete video list that covers Core...
http://wn.com/AQA_GCSE_Science_and_P1_The_Electromagnetic_Spectrum
A GCSE revision video explaining the features and uses of the electromagnetic spectrum of waves. Check the website for a complete video list that covers Core...
- published: 13 Feb 2012
- views: 27823
- author: myGCSEscience
A.2.1 Describe the electromagnetic spectrum IB Chemistry SL
- Order: Reorder
- Duration: 5:26
- Updated: 15 May 2013
This time with equations! Wave number = 1/wavelength in cm Speed of light = wavelength x frequency Energy = Planck's constant x frequency Dr Atkinson soon mo...
http://wn.com/A21_Describe_the_electromagnetic_spectrum_IB_Chemistry_SL
This time with equations! Wave number = 1/wavelength in cm Speed of light = wavelength x frequency Energy = Planck's constant x frequency Dr Atkinson soon mo...
- published: 10 Sep 2012
- views: 1999
- author: Richard Thornley
How to remember the ElectroMagnetic Spectrum...
- Order: Reorder
- Duration: 3:18
- Updated: 07 Aug 2013
the story was told to me by my physics teacher and a friend found the mnemonic...
http://wn.com/How_to_remember_the_ElectroMagnetic_Spectrum
the story was told to me by my physics teacher and a friend found the mnemonic...
- published: 09 Jun 2009
- views: 39979
- author: SpontaneousPlanning
Electromagnetic Spectrum Song performed by the GAMP Concert Choir
- Order: Reorder
- Duration: 1:31
- Updated: 13 Jul 2013
The Girard Academic Music Program (GAMP) Concert Choir performs a tribute to the original composition and lyrics of Emerson Foo and Wong Yann's Electromagnet...
http://wn.com/Electromagnetic_Spectrum_Song_performed_by_the_GAMP_Concert_Choir
The Girard Academic Music Program (GAMP) Concert Choir performs a tribute to the original composition and lyrics of Emerson Foo and Wong Yann's Electromagnet...
- published: 20 Jan 2011
- views: 8486
- author: RuddickScience
photo: AP / Cristian Viveros
02 Apr 2014
Locals sit on the street following a tsunami alert after a powerful 8.0-magnitude earthquake. Photo. AFP. Chile earthquake. as it happened. Santiago. A major earthquake has struck off the coast of Chile, triggering a tsunami, causing landslides that blocked highways and leading to at least five deaths. The earthquake of magnitude 8.2 struck at 8.46pm local time, and triggered a tsunami that hit the northern part of the country ... Photo ... ....(size: 3.1Kb)
photo: US DoS
01 Apr 2014
Article by WN.com Correspondent Dallas Darling. Instead of being overly alarmed with Crimea's popular and democratic referendum to join Russia, or as some in the West would say Russia's military incursion into Ukraine, the real concern should be if the United States and western Europe will again misread Russian objectives. Starting right after World War I and continuing through to the Soviet Union's invasion of Afghanistan, the U.S ... ....(size: 5.8Kb)
photo: AP / Ramon Espinosa
03 Apr 2014
3 April 2014 Last updated at 18.53 BST. The US created a text-message social network designed to foment unrest in Cuba, according to an investigation by the Associated Press news agency ... "This was a programme that has been invested in and debated by in Congress," Mr Carney said ... Read more. US created 'Cuban Twitter' to stir unrest ... ....(size: 2.2Kb)
photo: AP / Tamir Kalifa
03 Apr 2014
Share. ABC US News . ABC Business News Copy. The soldier accused of opening fire at Fort Hood, killing three people and wounding 16, was an Iraq war veteran who was battling an array of mental health issues and taking medications, military officials said today. Spc ... Fort Hood Shooter's Facebook Page Puts Face to Rampage. Casualties Confirmed After Fort Hood Shooting ... Photos. Shooting at Fort Hood ... All were members of the military ... Gen ... ....(size: 3.8Kb)
photo: AP / Cristian Vivero
03 Apr 2014
A second powerful earthquake has struck off northern Chile, a day after the region was hit by a deadly 8.2-magnitude tremor. The 7.6-magnitude quake rattled buildings and triggered a new round of evacuations, although a tsunami alert issued for coastal communities was soon lifted ... Authorities estimate about 2,500 homes were damaged by Tuesday's quake ... ....(size: 1.9Kb)
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Business Journal
04 Apr 2014
Staff Dayton Business Journal. The Department of Defense has updated its existing electronic warfare policy, refining it as a "cross-cutting capability" of joint operations, Defense Systems reports ... The Pentagon would like to integrate EW, which involves control of the electromagnetic spectrum used by satellites, radar, radios, drones and any mobile or wireless device, into the full range of military operations ... Related links. ... Comments....(size: 6.0Kb)
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New Straits/Business Times
03 Apr 2014
Spatial information describes the co-ordinates or location of an object based on the object pixel's size and spectral captures the image of the object at a specific frequency across the electromagnetic spectrum. Human eyes can only detect a small portion of these spectrums such as the colours of a rainbow, but satellite sensors are able to pick up wider range microwaves, thermal and infrared which are reflected from the earth surface....(size: 3.6Kb)
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Business Journal
03 Apr 2014
Staff Washington Business Journal. The Department of Defense has updated its existing electronic warfare policy, refining it as a "cross-cutting capability" of joint operations, Defense Systems reports ... The Pentagon would like to integrate EW, which involves control of the electromagnetic spectrum used by satellites, radar, radios, drones and any mobile or wireless device, into the full range of military operations ... Related links. ... Jobs....(size: 6.3Kb)
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NIST Launches a New U.S. Time Standard: NIST-F2 Atomic Clock (NIST - National Institute of Standards and Technology)
noodls03 Apr 2014
(Source. NIST - National Institute of Standards and Technology). BOULDER, Colo. -- The U.S ... civilian time and frequency standard, along with the current NIST-F1 standard ... In its role as the U.S ... Credit. NIST. high-resolution version ... The U.S ... In the future, better performance will likely be achieved with clocks based on atoms that switch energy levels at much higher frequencies in or near the visible part of the electromagnetic spectrum ... *T.P....(size: 6.2Kb)
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PR Newswire
03 Apr 2014
LONDON, April 3, 2014 /PRNewswire/ -- Reportbuyer.com just published a new market research report.. Electronic Warfare Market Forecast Analysis (2014 – 2020). The report provides market analysis of the global electronic warfare market over the next five years ... The continuing exploitation of the electromagnetic spectrum will be a driving factor for the sector ... Europe ... 4.1.1 INCREASING EXPLOITATION OF ELECTRO MAGNETIC SPECTRUM 23 ... Tel....(size: 19.0Kb)
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2014/04/02 Spectrum Challenge Final Event Helps Pave the Way for More Robust, Resilient and Reliable Radio Communications (DARPA - Defense Advanced Research Projects Agency)
noodls02 Apr 2014
Reliable wireless communications today requires careful allocation of specific portions of the electromagnetic spectrum to individual radio networks ... "The teams showed that radios can learn to coexist and communicate reliably by autonomously sensing and adapting to congested electromagnetic environments-paving the way for new spectrum-sharing applications for the Department of Defense and commercial industry."....(size: 6.1Kb)
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First On-Line Store for Terahertz Equipment Goes Live - Including THz Sensors, Spectrometers & Cameras
San Francisco Chronicle31 Mar 2014
Palatine, IL (PRWEB) March 31, 2014 ... But what is Terahertz exactly? Terahertz (THz) waves refer to electromagnetic radiation in the frequency interval from 0.1 to 10 THz. The terahertz regime of the electromagnetic spectrum lies between the mid-infrared and microwave bands, which represents an important transition from quantum-level to bulk transport physics ... The President of eAccess, David Bean has added that ... eAccess Solutions, Inc....(size: 3.4Kb)
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noodls
28 Mar 2014
(Source. Claire McCaskill) Senator discusses airborne electronic attack capability, contracting costs, curbing military sexual assault. WASHINGTON - U.S. Senator Claire McCaskill today questioned top Navy officials on their request for more E/A-18 Growlers, and how that request fits in with the future of airborne electronic attack capabilities ... the future in the electromagnetic spectrum is expanding dramatically." ... ### ... (noodl....(size: 3.7Kb)
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Baltimore Sun
26 Mar 2014
WASHINGTON (Reuters) - The U.S. Navy would add two Boeing Co EA-18G Growler electronic attack fighters to each five-plane squadron on its aircraft carriers, if Congress will fund its request of $2.1 billion for 22 more of the aircraft ... He said the extra planes could also be used for "expeditionary" missions ... warplanes ... fighters to enemy airspace for years to come ... "The CNO has talked about domination of the electromagnetic spectrum ... ....(size: 3.1Kb)
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VIDEO: U.S. REP. RON BARBER FIGHTS FOR FORT HUACHUCA IN QUESTIONING OF TOP ARMY OFFICIALS (Ron Barber)
noodls26 Mar 2014
(Source. Ron Barber). WASHINGTON - U.S. Rep. Ron Barber today questioned U.S. Army leaders on the president's proposed budget and spoke to the global importance of Fort Huachuca, the largest employer in Cochise County and in Southern Arizona ... Raymond T. Odierno, Army chief of staff ... Barber previously has drawn the Army's attention to the fort's clean electromagnetic spectrum, making it an ideal place to test electronic equipment ... Joseph W....(size: 3.9Kb)
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San Francisco Chronicle
24 Mar 2014
Glenwood Springs, CO (PRWEB) March 24, 2014. RF SAFE is the world's premier provider of cell phone radiation protection accessories and informational data ... RF Safe's slogan "The Only Way To Trust Wireless!" is a reminder for everyone to be safe when using wireless devices that emit radio frequency radiation, most notably cell phones using the electromagnetic spectrum in microwave range....(size: 2.8Kb)
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Seattle Post
21 Mar 2014
The leading feature of the KIND LED suite of grow lights is the 12 band perfect spectrum that encompasses the most plant-friendly Photosynthetic Active Radiation (PAR) wavelengths that plants are most likely to use during photosynthesis. The KIND K3 “12 Band Perfect Spectrum” spectral bands almost exclusively reside between 440-480 on the blue side of the electromagnetic spectrum and between 620-680 on the red side of the spectrum....(size: 2.8Kb)
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San Francisco Chronicle
21 Mar 2014
The leading feature of the KIND LED suite of grow lights is the 12 band perfect spectrum that encompasses the most plant-friendly Photosynthetic Active Radiation (PAR) wavelengths that plants are most likely to use during photosynthesis. The KIND K3 “12 Band Perfect Spectrum” spectral bands almost exclusively reside between 440-480 on the blue side of the electromagnetic spectrum and between 620-680 on the red side of the spectrum....(size: 2.8Kb)
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The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object.
The electromagnetic spectrum extends from low frequencies used for modern radio communication to gamma radiation at the short-wavelength (high-frequency) end, thereby covering wavelengths from thousands of kilometers down to a fraction of the size of an atom. It is for this reason that the electromagnetic spectrum is highly studied for spectroscopic purposes to characterize matter. The limit for long wavelength is the size of the universe itself, while it is thought that the short wavelength limit is in the vicinity of the Planck length, although in principle the spectrum is infinite and continuous.
This page contains text from Wikipedia, the Free Encyclopedia -
http://en.wikipedia.org/wiki/Electromagnetic_spectrum
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
