N. Watson in 1918, but this analysis involved assumptions which, while perfectly valid for the long and medium waves then in use for radio communication, are not justifiable for the ultra-short ...
Bit by bit, the physicists have filled the gaps in the electromagnetic spectrum, which runs from X rays at the short end, through light and heat, to miles-long radio waves at the other.
The human ear detects sound. Sound waves enter the ear canal and cause the eardrum to vibrate. Three small bones transmit these vibrations to the cochlea. This produces electrical signals which ...