|1.||Billy. born 1957, British rock singer and songwriter, noted
for his political protest songs; recordings include Between the
Wars (1985), Workers' Playtime (1988), Mermaid Avenue (1998),
and England, Half English (2002)| |2.||Melvyn, Baron. born 1939,
British novelist, broadcaster, and television executive;
presenter of The South Bank Show since 1978| |3.||Sir William
Henry , 1862--1942, British physicist, who shared a Nobel prize
for physics (1915) with his son, for their study of crystal
structures by means of X-rays| |4.||his son, Sir (William)
Lawrence, 1890--1971, British physicist| |a scrap or morsel of
food left at a meal.| |a screen or mat covered with a dark
material for shielding a camera lens from excess light or
glare.| |Bragg (brāg) Pronunciation Key British physicist who
invented the x-ray spectrometer, a device used to measure x-ray
wavelengths. With his son, the physicist Sir William Lawrence
Bragg (1890-1971), he developed the technique of x-ray
crystallography, used to determine the atom