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Angling with fishing rods give more control of the fishing line, and allows the bait/lure to be launched much farther than hand-throwing can reach. The rod is usually fitted with a fishing reel which functions as a mechanism for storing, retrieving and paying out the line. Floats may also be used, and can function as bite indicators. The hook ...
The Maddox rod is a handheld instrument composed of red parallel plano convex cylinder lens, which refracts light rays so that a point source of light is seen as a line or streak of light. [2] Due to the optical properties, the streak of light is seen perpendicular to the axis of the cylinder. [3] Maddox rod and pen torch used in Maddox rod testing
As the name implies, it consists of four cylindrical rods, set parallel to each other. [2] In a quadrupole mass spectrometer (QMS) the quadrupole is the mass analyzer – the component of the instrument responsible for selecting sample ions based on their mass-to-charge ratio ( m/z ).