Beers, D. G, et al. Map of Cambria Co., Pennsylvania: from actual surveys & official records. Philadelphia: Published by A. Pomeroy, . Phila.: Printed by Fred. Bourquin, 1867. Map. Retrieved from the Library of Congress, <https://www.loc.gov/item/2012592157/>.
A typical heating element is usually a coil, ribbon (straight or corrugated), of strip of wire that gives off heat much like a lamp filament. When an electric current flows through it, it glows red hot and converts the electrical energy passing through it into heat, which it radiates out in all directions.
Main Sequence blue giants such as Rigel are located on the left-hand side of the H-R diagram. The order is O B A F G K M, and these are spectral classes based on color and tem â¦ perature. The hottest stars burn blue/white because blue light has the shortest wavelengths and the highest temperatures.