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A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position. [ 1 ] [ 2 ] In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45° angle.
Although bowling may be regarded as a fun, social activity to do, you may be surprised to learn how much people who do it professionally actually earn. The 11 highest-earning bowlers of all time ...
An off spin delivery. Ajantha Mendis at the point of delivery. Although finger spin may be bowled with the same technique (albeit laterally inverted, as though viewed in a mirror) by both right and left handed bowlers, such bowlers are often discussed separately, as the direction in which the ball deviates as it bounces on the cricket pitch is different:
Most bowlers use three holes (thumb and two fingers,). On past, one could drill additional holes on other parts of the bowling ball, to take additional weight off of a portion of the bowling ball, such as an axis hole that allows the bowling ball's hook to stabilize during its roll to the pins. Doctoring the bowling ball by adding additional ...
Make That Spare is a fifteen-minute bowling program that was broadcast on ABC from October 8, 1960, to September 11, 1964. [1] Broadcast history.
Joan Collins has legs for days!. After the Dynasty actress, 91, shared a carousel of photos from her and husband Percy Gibson's recent vacation in Cancun, Mexico, via Instagram, fans couldn't help ...
In 1905, Robertson's book The Submarine Destroyer was published. It described a submarine that used a device known as a periscope.Despite Robertson's later claims that he had "invented" a prototype periscope himself (and was refused a patent), Simon Lake and Harold Grubb had perfected the model used by the U.S. Navy by 1902, three years before Robertson's "prescient" novel.
An Australian sniper aims a periscope-equipped rifle at Gallipoli in 1915. The spotter beside him is helping to find targets with his own periscope. During World War I, snipers appeared as deadly sharpshooters in the trenches. At the start of the war, only Imperial Germany had troops that were issued scoped sniper rifles. Although sharpshooters ...