Victor Weisskopf's suggestion resulted in an explanation of how electrons travel through semiconductors.

VOA: special.2010.11.09

A scientific theory represents the best explanation of how the natural world works.

VOA: special.2009.12.01

Mayor Daley says the city will rewrite its gun ordinance to comply with Second Amendment rights, but he offered no explanation of how that might be achieved.

VOA: standard.2010.06.29