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A POTD is an acronym for "Photo of the Day", "Picture of the Day", "Post of the Day" or "Poll of the Day". It is a term most commonly used by online digital photography communities as an honor to outstanding photos that are selected daily from among that community's membership. They can either be tagged as POTD or displayed in a special page on that site...

Surfing is a surface water sport. Definition: the sport or pastime being carried to the shore on the crest large waves while standing or lying on some sort board (i.e. longboard, short board, boogie board, wake board). Two major subdivisions within stand-up surfing are longboarding and shortboarding, reflecting differences in surfboard design including surfboard length, and riding style...

Sphinx Observatory is an observatory located on Jungfraujoch in Switzerland. The mountain top has been hollowed to fit an elevator that leads to the observatory from the train station and ice Palace. At 11,715 ft (3,571 meters) above sea level The Sphinx Observatory is the highest-altitude built structure in Europe...

Mining is the extraction of valuable minerals or other geological materials from the earth, from an ore body, vein or (coal) seam. The term also includes the removal of soil. Materials recovered by mining include base metals, precious metals, iron, uranium, coal, diamonds, limestone, oil shale, rock salt and potash. Any material that cannot be grown through agricultural processes, or created artificially in a laboratory or factory, is usually mined...

A classic car is an older car; the exact meaning is variable. The Classic Car Club of America maintains that a car must be between 20 and 40 years old to be a classic, while cars over 45 years fall into the Antique Class. Definition • Classic Car Club of America The Classic Car Club of America defines a CCCA Classic as follows: A CCCA Classic is a "fine" or "distinctive" automobile, either American or foreign built, produced between 1925 and 1948.....