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Metamaterial - Wikipedia
An electromagnetic metamaterial affects electromagnetic waves that impinge on or interact with its structural features, which are smaller than the wavelength. To behave as a homogeneous material accurately described by an effective refractive index, its features must be much smaller than the wavelength For microwave radiation, the features are on the order of millimeters....
Last update Wed, 16 May 2018 13:22:00 GMT Read More
Electromagnetic radiation - Wikipedia
Maxwell’s equations. Maxwell derived a wave form of the electric and magnetic equations, thus uncovering the wave-like nature of electric and magnetic fields and their symmetry.Because the speed of EM waves predicted by the wave equation coincided with the measured speed of light, Maxwell concluded that light itself is an EM wave. Maxwell’s equations were confirmed by Heinrich Hertz ...
Last update Sun, 13 May 2018 22:59:00 GMT Read More
Cabling Glossary – Network Cabling San Diego
The following is a glossary of commonly used network cabling terms. These definitions are per industry standards. If you have any questions, give me a call....
Last update Sun, 13 May 2018 21:54:00 GMT Read More
Acoustics FAQ - University of New South Wales
How can you have negative decibels? Doesn't zero decibels mean no sound? Zero decibels is a reference level, not zero sound pressure. So one can have negative decibels....
Last update Wed, 16 May 2018 09:33:00 GMT Read More