the.com/radio
the invisible river of voices we've been swimming in for a century
means A device or system that transmits and receives sound through electromagnetic waves, letting voices and music travel through the air without wires.
from From the Latin 'radius,' meaning 'ray' or 'spoke of a wheel' — the same root that gives us 'radius' and 'radiant.' Early on, the technology was called 'wireless telegraphy,' but as scientists studied the way signals radiated outward in all directions like light from a source, the prefix 'radio-' took hold (as in 'radiotelegraphy'). It was eventually clipped down to the standalone 'radio' in the early 20th century — a word that quite literally means 'the radiating thing.'
- first broadcast
- Aired on Christmas Eve 1906
- deep space
- Voyager still phones home via radio
- oldest light
- Cosmic microwave background is ancient radio
- war of worlds
- 1938 broadcast reportedly sparked listener panic
- speed
- Travels at the speed of light
bbc radio 4 — uk's most listened-to radio station with 10.2 million weekly listeners as of 2024
all india radio — world's largest radio broadcaster by number of transmitters, reaching 92% of india's population
npr — us public radio network with 17 million weekly listeners, founded 1971
radio moscow — soviet state radio service that broadcast propaganda globally during cold war, 1922-1991