Science and technology

Associated Press
Apple CEO Tim Cook arrives on Capitol Hill, in Washington, Tuesday, May 21, 2013, to testify before the Senate Homeland Security and Governmental Affairs Permanent subcommittee on Investigations hearing to examine the methods employed by multinational corporations to shift profits offshore and how such activities are affected by the Internal Revenue Code.  Cook is expected to defend how the world's most valuable company, based in Cupertino, Calif., holds a billion dollars in an Irish subsidiary as a tax strategy, according to a report issued this week by the subcommittee.  (AP Photo/J. Scott Applewhite)

View gallery

500 photos

Astronomy, meteorology, environment, archaeology, electronics, computers and gadgets

View Comments (0)