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Home > Horizontal branch

 
The horizontal branch (HB) is a stage of stellar evolution which immediately follows the red giant branch . HB stars are powered by helium fusion (aka the triple-alpha reaction) in their cores, and hydrogen fusion in a shell surrounding the core. The horizontal branch is so named because HB stars lie along a roughly horizontal line in a color-magnitude diagram . Astronomy

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Topics: Horizontal Branch, Horizontal Bar, Horizontal Coordinate System...

Horizontal barThe horizontal bar or high bar is an Artistic Gymnastics apparatus. It is only used by male gymnasts. It is made of metal or steel. Dimensions Height: 280 cm (including about 20 cm landing mats) Length: 240 cm Diameter of the bar: 28 mm From the Boy's OwnHorizontal coordinate systemThe horizontal coordinate system is a celestial coordinate system that uses the observer's local horizon as the fundamental plane. This conveniently divides the sky into the upper hemisphere that you can see, and the lower hemisphere that you can't (becauHorizontal blank interruptA horizontal blank interrupt is a programming technique used in some systems, notably video games and consoles, to allow program code to be run in the periods when the display hardware is turned off, waiting for the TV to complete its horizontal blank, wh
Horizontal gene transferHorizontal gene transfer is any process in which an organism transfers genetic material (i. DNA) to another cell that is not its offspring. By contrast, vertical transfer occurs when an organism receives genetic material from its ancestor, e. its parent oHorizontal integrationIn microeconomics and strategic management, horizontal integration is a theory of ownership and control. It is a strategy used by a business or corporation that seeks to sell one type of product in numerous markets. To get this market coverage, several smHorizontalHorizontal is an orientation relating to, or in parallel with the horizon, and the opposite of vertical. A horizontal line goes from left to right (or vice versa) where a vertical line goes from top to bottom. In Cartesian coordinates of the form x ''y ,
Horizontal planeHorizontal and vertical integrationHorizontal Market
Horizontal branchHorizontal monopoly 
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