Results for: brant-rock-radio-tower-1910-jpg

Is Devils Tower igneous?

Devils Tower is an igneous rock structure. The rock of Devils Tower is composed of phonolite porphyry, an intrusive igneous rock.

When was voice acting first used?

Hello! On Christmas Eve 1906, Reginald Fessenden made the first radio audio broadcast, from Brant Rock, Massachusetts, playing O Holy Night on the violin and reading a passage from the Bible. :)