thomas edison was the first scientist who produced electromagnetic waves in a laboratory.
who was the first scientist who produced electromagnetic waves in a laboratory?
thomas edison
the idea of wireless communication predates the discovery of "radio" with experiments in "wireless telegraphy" via inductive and capacitive induction and transmission through the ground, water, and even train tracks from the 1830s on. james clerk maxwell showed in theoretical and mathematical form in 1864 that electromagnetic waves could propagate through free space. it is likely that the first intentional transmission of a signal by means of electromagnetic waves was performed in an experiment by david edward hughes around 1880, although this was considered to be induction at the time. in 1888 heinrich rudolf hertz was able to conclusively prove transmitted airborne electromagnetic waves in an experiment confirming maxwell's theory of electromagnetism.
history of radio
bullet::::- , "signaling by electromagnetic waves" – may 1903









































bullet::::- , "receiver for electromagnetic waves" (improved "barretter" -- actually electrolytic detector) – may 1903









































bullet::::- , "signaling by electromagnetic waves" – 9 june 1903









































bullet::::- , "method of utilizing the energy of waves" – 16 june 1903









































bullet::::- , "signaling by electromagnetic waves" – 27 october 1903









































bullet::::- , "signaling by electromagnetic waves" – 27 october 1903









































bullet::::- , "selective signaling" – 23 february 1904









































bullet::::- , "signaling by electromagnetic waves" – 23 february 1904









































bullet::::- , "signaling by electromagnetic waves" – 8 march 1904
list of reginald fessenden patents