Judges for this contest studied how each design looks and how it uses new technologies and materials.

VOA: special.2010.03.31

Engineers,inventors, students and others come together to design and test different methods and materials for improving stoves.

VOA: special.2010.02.01

And in fact growing worldwide for that reason." Harry Atwater's description of his new design for solar cells is published in the journal Nature Materials.

VOA: standard.2010.02.19