wire telegraphy การใช้

• He furthered progress in galvanoplastics, electric motors, and wire telegraphy.
• Building on the ideas of previous scientists and inventors Marconi re-engineered their apparatus by trial and error attempting to build a radio based wireless telegraphic system that would function the same as wired telegraphy.
• After many breakthroughs, including applying the wired telegraphy concept of grounding the transmitter and receiver, Marconi was able, by early 1896, to transmit radio far beyond the short ranges that had been predicted.
• A breakthrough came that summer when Marconi found that much greater range could be achieved after he raised the height of his antenna and, borrowing from a technique used in wired telegraphy, grounding his transmitter and receiver.
• His works had the title :  " L'閠at actuel et les prog鑣 de la t閘間raphie sans fil "  ( " Actual knowledge and progress of no-wired telegraphy " ).
• He imposed strict food regulations on the university and he established thirteen courses in seven different departments for the direct purpose of " training soldiers, training men who expect to become soldiers, and training people who take the place of soldiers in civil life . " Some of these courses included : wire telegraphy, wireless telegraphy, stenography and shorthand, oxyacetylene welding, orthopedic surgery, military field engineering, and first aid courses.