-
The radio is a telecommunication system that enables the transmission of signals through electromagnectic waves. In 1867, a Scottish physist named JC Maxwell, proposed the existence of electromagnetic waves. The theory was later approved by H.R Herz in 1887. In 1901, Marconi sent the first wireless message to America.
-
The television is a system that allows the remote transmission of sound and images at the same time. Television broadcasts started around 1930. The popularization of the television came in the 1950s-1960s.
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.