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Search Results for: Appleton layer
AI Overview: The Appleton layer, also known as the Kennelly-Heaviside layer or E Region, is a part of the ionosphere located between 90 and 150 kilometers above the Earth's surface. Named after scientists Arthur Edwin Kennelly and Oliver Heaviside, this layer contains a high concentration of ionized particles that reflect radio waves, playing a crucial role in long-distance radio communications.
Layer
The term 'Layer' can refer to various contexts including archaeological layers, layer hens for egg production, layered clothing, and fictional characters such as a female Maverick Hunter in the Mega Man X series. In science, it refers to geological strata and temperature layers in water. In technology, it encompasses various computing concepts such as abstraction layers, OSI model layers, and layers in digital image editing, as well as electronic layers like DVD layers.
Kennelly–Heaviside Layer
The Kennelly–Heaviside layer, also known as the ionosphere, is a region of the Earth's upper atmosphere that contains a high concentration of ionized particles, which can reflect radio waves. This layer plays a crucial role in long-distance radio communications.
Heaviside Layer
The Heaviside Layer, also known as the Kennelly-Heaviside layer, is a part of the ionosphere that reflects radio waves, aiding in long-distance communication.
E Region
The E Region, also known as the Kennelly-Heaviside layer, is a part of the ionosphere located approximately 90 to 150 kilometers above the Earth's surface. It plays a crucial role in radio wave propagation and reflects medium frequency radio waves back to the Earth's surface.
Kennelly-Heaviside Layer
The Kennelly–Heaviside layer, also known as the E-region, is a part of the ionosphere located between 90 km and 150 km above the Earth's surface. Named after scientists Arthur Edwin Kennelly and Oliver Heaviside, this region plays a crucial role in splitting neutral molecules into electrons and positively charged ions. It allows radio waves to be reflected, facilitating long-distance radio communication, as demonstrated by Marconi's Atlantic message in 1902.
Compacted Oxide Layer Glaze
Compacted oxide layer glaze refers to a shiny, wear-resistant oxide layer that forms when two metals or a metal and ceramic slide against each other at high temperature in an oxygen-rich environment. This layer, which can develop on one or both surfaces in contact, provides protection against wear.
Exosphere
The exosphere is the outermost layer of a planet's atmosphere, characterized by extremely low density where molecules are gravitationally bound but collisionless. It contains light gases like hydrogen and helium, with heavier gases like carbon dioxide and atomic oxygen near the base. The lower boundary, known as the exobase or thermopause, is located about 500-800 km above the surface. Temperatures in this region can reach thousands of degrees Celsius.
Sheet Film
Sheet film is a type of photographic film provided in sheets instead of rolls, commonly utilized in medium and large format photography.
Gloss (optics)
Gloss refers to the shininess or luster of a surface, often measured in terms of its reflective properties. It is a crucial aspect in material appearance, influencing both aesthetic and functional characteristics in various applications.
Atmosphere of the Sun
The page discusses the sun's atmosphere, highlighting its composition and layers without providing in-depth content as it redirects to another page.