Narrated by Tom Tregenza of the University of Exeter, this video looks at the ups and downs of cricket life. Tregenza and his colleagues recorded the footage as part of their research on natural and sexual selection in a wild insect population.
This animation shows one scenario of how oil released at the location of the Deepwater Horizon disaster on April 20 in the Gulf of Mexico may move in the upper 65 feet of the ocean. (courtesy of Tim Scheitlin and Rick Brownrigg, NCAR)
In this clip of tortoise tests in a lab, animals with no coaching fail to locate the treat on the other side of the fence. When researchers let the trained tortoise demonstrate, observer tortoise manages readily. (VIdeo Courtesy Anna Wilkinson)
Virgin Galactic's SpaceShipTwo makes its first captive carry flight from the Mojave Air and Space Port. SpaceShipTwo, which was christened the VSS Enterprise at its unveiling in December, is being carried by WhiteKnightTwo.(Courtesy Virgin Galactic)
The upcoming movie 'Hubble 3D' was filmed with an IMAX camera, which was carried into space on the shuttle Atlantis. In this clip, NASA astronaut Mike Massimino takes us on a tour of the space shuttle. (courtesy NASA)
This is a unique recording of a downward negative stepped leader that makes a connection with a tower. As the negative stepped leader gets closer to the tower, a positive leader forms from the tower tip and moves upward.
This video shows a positively charged upward propagating leader. It forms from the tip of a TV tower, then branches up to the cloud above. Some of the dim branches exhibit bright recoil leaders (courtesy Tom Warner).
Lighting filmed near Bear Butte, South Dakota. The video shows multiple negative stepped leaders. The leaders travel in many different directions and periodically pause and redevelop. (Courtesy of Tom Warner).
To visualize unidirectional flow, scientists excised a lung of an American alligator and filled it with saline containing fluorescent microspheres. In this clip, the microspheres can be seen flowing through the alligator's central ventral bronchus.
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