Search results
Results From The WOW.Com Content Network
The microwave auditory effect, also known as the microwave hearing effect or the Frey effect, consists of the human perception of sounds induced by pulsed or modulated radio frequencies. The perceived sounds are generated directly inside the human head without the need of any receiving electronic device.
Non-thermal effects in solids are still part of an ongoing debate. It is likely that through focusing of electric fields at particle interfaces, microwaves cause plasma formation and enhance diffusion in solids [5] via second-order effects. [6] [7] [8] As a result, they may enhance solid-state sintering processes. Debates continued in 2006 ...
Microwaves travel by line-of-sight; unlike lower frequency radio waves, they do not diffract around hills, follow the earth's surface as ground waves, or reflect from the ionosphere, so terrestrial microwave communication links are limited by the visual horizon to about 40 miles (64 km). At the high end of the band, they are absorbed by gases ...
Microwave and other radio frequencies cause heating, and this can cause burns or eye damage if delivered in high intensity, [38] or hyperthermia as with any powerful heat source. Microwave ovens use this form of radiation, and have shielding to prevent it from leaking out and unintentionally heating nearby objects or people.
[1] [2] It is in the microwave part of the radio spectrum, between the super high frequency band and the terahertz band. Radio waves in this band have wavelengths from ten to one millimeter, so it is also called the millimeter band and radiation in this band is called millimeter waves, sometimes abbreviated MMW or mmWave.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Dust to Dust: The Health Effects of 9/11: Air pollution: from September 11 attacks, United States Environmental Protection Agency: Heidi Dehncke-Fisher 2006 Earth: Environmental change: effects on three particular species: Alastair Fothergill, Mark Linfield, and Leslie Megahey: 2007 Earth Days: Environmentalism: environmental movement in the ...
The memorable theme tune went "Yoffy lifts a finger, and a mouse is there/Puts his hands together, and a seagull takes the air/Yoffy lifts a finger, and a scampi darts about/Yoffy bends another, and a tortoise head peeps out/These hands were made for making, and making they must do."