Mister Wegener said the lighter continental rock floated up through the heavier basalt rock of the ocean floor.

VOA: special.2010.01.12

Confederate losses were much lighter: about twenty thousand.

VOA: special.2009.11.26

The challenge for designers was to create a vehicle with the protection provided by an MRAP but about 25 per cent lighter.

VOA: standard.2009.11.02