University of Montreal

Superconductivity can induce magnetism

When an electrical current passes through a wire it emanates heat - a principle that's found in toasters and incandescent light bulbs. Some materials, at low temperatures, violate this law and carry current without any heat ...

Sep 11, 2008 4.6 / 5 (36) 3

Do kids benefit from homework?

(PhysOrg.com) -- Homework is as old as school itself. Yet the practice is controversial as people debate the benefits or consider the shortcomings and hassles. Research into the topic is often contradictory ...

Nov 23, 2009 3.6 / 5 (21) 3