Shrine Parishioners pull their portable shrine during Nada No Kenka Matsuri, or Nada Fight Festival at Matsubara Hachiman Shrine on October 16, 2011 in Himeji, Hyogo, Japan. The fight, the highlight of the shrine's Autumn Harvest Festival, attracts 100,000 people. (Photo by Buddhika Weerasinghe/Getty Images)

Dr. Hannah Cobb from The University of Manchester looks at a viking sword during a viewing at CFA Archaeology of artefacts discovered from the first fully intact Viking boat burial site on October 18, 2011 in Edinburgh, Scotland. (Photo by Jeff J Mitchell/Getty Images)

The Rainbow Warrior III, the newest ship of the enivornmental conservation organization Greenpeace, makes its way to port on the Elbe River on October 20, 2011 in Hamburg, Germany. The Rainbow Warrior III, 53 meters long, designed by Greenpeace and built in Poland and Germany, is a EUR 23 million project completed last week. (Photo by Sean Gallup/Getty Images)

Soyuz VS01 is lifts off at the European Spaceport on October 21, 2011 in Kourou, French Guiana. The Soyuz VS01 rocket is carrying the first two satellites of Europe's Galileo navigation satellite system into orbit. (Photo by Stephane Corvaja/ESA via Getty Images)

Engineer Thomas Dwyer stands with the new Bionic Exoskeleton next to Amanda Boxtel during its launch at the Excel centre on October 21, 2011 in London, England. The bionic device developed by Ekso Bionics is a wearable, battery-powered, robotic exoskeleton, designed to aid wheelchair users and those who have suffered from spinal chord injuries to stand and walk. (Photo by Dan Kitwood/Getty Images)

Riot police face off with demonstrators at the “Occupy Denver” camp on October 29, 2011 in Denver, Colorado. Following a march by protesters, police moved in on their encampment to tear down recently erected tents. They arrested numerous protesters, pepper-sprayed others and others reportedly fired rubber bullets at the crowd during the confrontation. (Photo by John Moore/Getty Images)

The London 2012 ArcelorMittal Orbit Sculpture at the Olympic park nears completion on November 4, 2011 in London, England. The Ј22 million sculpture designed by Anish Kapoor is nearly complete. Standing at 115 meters tall the permanent structure is Britain's largest artwork and houses an observation deck near the top. (Photo by Peter Macdiarmid/Getty Images)

Crowd reaction outside the court for the Dr. Conrad Murray trial verdict on November 7, 2011 in Los Angeles, California. Murray was convicted in the 2009 death of pop singer Michael Jackson from an overdose of the powerful anesthetic propofol. Sentencing will take place November 29. (Photo by Toby Canham/Getty Images)