What is a Diesel Particulate Matter Filter? A diesel particulate matter filter (DPF) is a ceramic device that collects the particulate matter in the exhaust stream The high temperature of the exhaust heats the ceramic structure and allows the particles inside to break down (or oxidize) into less harmful components.
Fascinating facts about the invention of the TV Remote Control by inventor Dr. Robert Adler in 1956. Fascinating facts about the invention of Wireless TV Remote Control by Robert Adler in 1956.
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.