Hypernyms (chemoreceptor is a kind of...): receptor; sense organ; sensory receptor (an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation). Hyponyms (each of the following is a kind of chemoreceptor):
Who invented hydro-electric power? Lester Allan Pelton was an American inventor who created an efficient form of impulse water turbine in 1878 in the goldfields.    In 1887 a miner attached Pelton's wheeâ¦l to a dynamo and produced the first hydroelectric power in the Sierra Nevada Mountains.
The first electronic device ever invented is the relay, a remote switch controlled by electricity that was invented in 1835 by Joseph Henry, an American scientist, although it is also claimed that the English inventor Edward Davy certainly invented the electric relay in his electric telegraph c.1835.t made modern telegraphy possible and evolved into the repeater-thus the relay-a remote controlled switch, was in effect the first (Electronic) device, though not anything involving crystals, diodes, vacuum tubes etc. The first invented Relay was used as part of his telegraph system circa 1844.