Getting
back into the groove
Queen Victoria, Abraham Lincoln, Florence Nightingale and other characters
from history may soon be able to speak again, as scientists perfect
techniques to recover the sound from recordings that are far too delicate
to be played.
In the corner of a California university laboratory, two men are battling
against time to perfect a machine that will read old recordings - using
special microscopes to scan the grooves - and software that can convert
those shapes into sound. Their work could bring history to life.
More at the BBC's web site.