Energy

Materials Science

Battery powered to heal

With its own first-aid kit, this battery can really keep going.

Physics

Like electricity, but magnetic

Getting magnetic poles on the move makes a new kind of flow.

Fossils

Downsized dinosaurs

Island living may have led to miniature versions of giant dinosaurs.

Tech

Cold house, hot house, green house

Saving energy at home requires paying attention to the building's windows, walls, and roof.

Tech

Electronic paper turns a page

Changeable ink and battery-powered paper may make textbooks lighter and bring video newspapers into daily use.