how is drawing related to it?
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the number of valence electrons of the germanium element is UNANSWERABLE what is germanium? It is a chemical element with the symbol Ge. is it a metal? It is a lustrous, hard-brittle, grayish-white metalloid. what is its atomic number? 32 who discovered it? UNANSWERABLE where can it be found? In the Earth's crust. what are some of its applications? 35% for fiber-optics, 30% infrared optics, 15% polymerization catalysts, and 15% electronics. what help does it offer in the field of optics? It is useful for wide-angle camera lenses, microscopy, and the core part of optical fibers. what does the last mentioned term refer to? A flexible, transparent fiber made by drawing glass (silica) or plastic. is it used in communication technology? Yes, it is used as a medium for telecommunication and computer networking. how do pigeons affect the former medium? Homing pigeons have occasionally been used throughout history by different cultures. what were other means of communication in early times? Electrical telegraph. who invented the device? Sir William Fothergill Cooke what kind of pigeons are mentioned above? It is a variety of domestic pigeons derived from the wild rock dove. was it used for as a postal service? Yes, a message may be written on thin light paper, rolled into a small tube, and attached to a messenger pigeon's leg. does the fiber specified above used in making sensors? Yes, in some applications, the sensor is itself an optical fiber.
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Optical fiber [SEP] Sensors
Fibers have many uses in remote sensing. In some applications, the sensor is itself an optical fiber. In other cases, fiber is used to connect a non-fiberoptic sensor to a measurement system. Depending on the application, fiber may be used because of its small size, or the fact that no electrical power is needed at the remote location, or because many sensors can be multiplexed along the length of a fiber by using different wavelengths of light for each sensor, or by sensing the time delay as light passes along the fiber through each sensor. Time delay can be determined using a device such as an "optical time-domain reflectometer".