The referees were busy for much of the day, with the Clippers called for 26 fouls to the Thunder's 22 in a physical game that featured double technicals on Caron Butler and Kendrick Perkins for their verbal exchange and Ibaka's flagrant-1 foul on Griffin.

NPR: Thunder Holds Off Clippers To Win 108-104

Israel has stepped up its military deployments near the border and is constructing a 240km (150-mile) double fence to act as a physical barrier.

BBC: Sinai attack marks step change in border violence

Sparkling in his role as a conscience-struck double agent, he fights intrigue and physical danger to triumph in the end.

ECONOMIST: Sierra Leone

There are larger physical challenges as well, since Wagner tuba players double on the French horn during the "Ring" when needed.

WSJ: It Takes Brass to Play the Wagner Tuba | By Barbara Jepson | The Ring of the Nibelung

Double Star will contribute to our understanding of these physical processes.

BBC: NEWS | Science/Nature | Chinese-European mission set for launch

So I ask the Congress to double Federal support for critical basic research in the physical sciences and ensure America remains the most dynamic nation on earth.

NPR: Text of Bush's State of the Union Address