COVER: Superconductivity, once a dead end, becomes the hottest thing in physics
Flying trains. Practical electric cars. Dime- a- dozen medical imaging machines. Normally cautious scientists are talking seriously about the prospects for these and other blue- sky inventions. Reason: a rapid- fire series of breakthroughs in substances that conduct electricity with perfect efficiency could eventually revolutionize technology. See SCIENCE.
As the Iran- contra hearings begin, the White House feels the heat
With a surprise opening witness, a select congressional committee explores a secret privatization of foreign policy designed to defy Capitol Hill on contra aid. -- The first...