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Topics: Polar Circle Circles Arctic Antarctic, Polaris, Polar Bear...

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PolarisPolaris Alpha Ursae Minoris, is the bright star closest to the north celestial pole, making it the current north pole star. It is also known as the North Star the Lode Star or the Pole star . Because it lies nearly in a direct line with the axis of the Ea Polar BearThe polar bear Ursus maritimus is a large mammal of the order Carnivora, family Ursidae. It is a circumpolar species found in and around the Arctic Ocean. It is the world's largest land carnivore. Adult males weigh from 400 to 600 kilograms and occasional Polarential telegraph systemA polarential telegraph system is a direct-current telegraph system employing polar transmission in one direction and a form of differential duplex transmission in the other. Two types of polarential systems, known as types A and B, are in use. In half-du PolarizationThis article treats polarization in electrodynamics. Other articles treat polarization in electrostatics, polarization in politics and polarization in psychology. In electrodynamics, polarization is a property of waves, such as light and other electromagn Polarization-maintaining optical fiberIn telecommunication, a polarization-maintaining optical fiber (PM) is an optical fiber in which the polarization planes of lightwaves launched into the fiber are maintained during propagation with little or no cross-coupling of optical power between the Polar auroraPolar aurorae are optical phenomena characterized by colorful displays of light in the night sky. An auroral display in the Northern Hemisphere is called the aurora borealis or the northern lights in the Southern Hemisphere it is called the aurora austral Polar climate Polari Polar Satellite Launch Vehicle Polar Air Cargo Polar, Wisconsin Polaroid Polaroid Corporation Polar circle Polar distance