16:00Radio 1 Breakfast with Greg JamesGreg’s Revision alerts and Power HourBBC Radio 1 Duration: 1 hour, 45 minutes Wed 3rd Apr 2013, 16:00 on BBC Radio 1 EnglandGreg has the day's Revision Power Hour, focusing on science! Show more GenresMusicPop & ChartEntertainmentBrandRadio 1 Breakfast with Greg James Source: BBC Online