News tagged with ball
Spitzer finds solid buckyballs in space
(PhysOrg.com) -- Astronomers using data from NASA's Spitzer Space Telescope have, for the first time, discovered buckyballs in a solid form in space. Prior to this discovery, the microscopic carbon spheres ...
Feb 22, 2012 |
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Some UFOs may be explained as ball lighting
(PhysOrg.com) -- An Australian scientist studying photographs of fireballs, UFO sightings and a report of a strange green light in the sky suggests some UFOs may be ball lightning caused by fireball meteors.
Caltech Scientists Test Air Flow Over the 2010 World Cup Soccer Ball (w/ Video)
(PhysOrg.com) -- The World Cup is in full swing, complete with an official new soccer ball named Jabulani, meaning "to celebrate" in Zulu. The players, however, aren't exactly celebrating. Instead, many of ...
Jun 25, 2010 |
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Mesoamerican people perfected details of rubber processing more than 3,000 years ago: study
(PhysOrg.com) -- Spanish explorers encountering an advanced civilization in Mesoamerica in the 16th century had plenty of things to be astonished about, but one type of object in particular was unlike anything ...
Other Sciences / Archaeology & Fossils
May 24, 2010 |
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How does an outfielder know where to run for a fly ball?
(PhysOrg.com) -- Faced with a fly ball soaring deep into center field during the 1954 World Series, New York Giants center fielder Willie Mays turned his back on the ball, ran straight to the center field ...
Medicine & Health / Medical research
Jan 21, 2010 |
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Synthesis with a template: Carbon-free fullerene analogue
(PhysOrg.com) -- A team led by Manfred Scheer at the University of Regensburg has now synthesized the first example of an inorganic, carbon-free C80 analogue.
Apr 30, 2009 |
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Discovery of the Musket Ball Cluster
(Phys.org) -- Using a combination of powerful observatories in space and on the ground, astronomers have observed a violent collision between two galaxy clusters in which so-called normal matter has been wrenched ...
Apr 12, 2012 |
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Researchers use lobster shells to create biodegradable golf ball
Golfers on the high seas can breathe a little easier -- and so can the marine life around them -- thanks to researchers at the University of Maine. In conjunction with The Lobster Institute, UMaine Biological ...
Mar 30, 2011 |
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Robotic ball a hit at electronics show (w/ Video)
A glowing robotic ball that is controlled by a smartphone has won fans and the interest of game developers at the Consumer Electronics Show (CES).
Jan 09, 2011 |
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Study: Rough match can sideline tennis players' perceptions
Tennis players who "ace" a match are more likely to see the ball as moving slowly and view the net as lower to the ground, according to new research from Purdue University.
Medicine & Health / Psychology & Psychiatry
Dec 02, 2010 |
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Carlos '97 free kick no fluke, say French physicists
Roberto Carlos' free kick goal against France in 1997's Tournoi de France is thought by many to have been the most skilful free kick goal - from 35m with a powerful curling banana trajectory - ever scored; but by others to ...
Sep 02, 2010 |
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Jabulani ball 'too perfect' to fly straight - scientists
When it comes to the World Cup Jabulani football, perfect may not be good enough, according to scientists who have analysed the controversial ball.
Jun 29, 2010 |
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Researchers Use Wind Tunnels to Test New World Cup Ball
Every four years, a new official soccer ball is designed for and used during World Cup matches. And every four years, players criticize the new ball.
Jun 08, 2010 |
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Electric fields make ceramic production quicker, cheaper, better
Researchers from North Carolina State University have found that applying a small electric field results in faster formation of ceramic products during manufacture at lower temperatures, and enhances the strength ...
Jun 01, 2010 |
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Researchers investigate mysterious stone spheres in Costa Rica
The ancient stone spheres of Costa Rica were made world-famous by the opening sequence of "Raiders of the Lost Ark," when a mockup of one of the mysterious relics nearly crushed Indiana Jones.
Other Sciences / Archaeology & Fossils
Mar 22, 2010 |
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Ball
A ball is a round, usually spherical but sometimes ovoid, object with various uses. It is used in ball games, where the play of the game follows the state of the ball as it is hit, kicked or thrown by players. Balls can also be used for simpler activities, such as catch, marbles and juggling. Balls made from hard-wearing materials are used in engineering applications to provide very low friction bearings, known as ball bearings. Black powder weapons use stone and metal balls as projectiles.
Although many types of balls are today made from rubber, this form was unknown outside the Americas until after the voyages of Columbus. The Spanish were the first Europeans to see bouncing rubber balls (albeit solid and not inflated) which were employed most notably in the Mesoamerican ballgame. Balls used in various sports in other parts of the world prior to Columbus were made from other materials such as animal bladders or skins, stuffed with various materials.
As balls are one of the most familiar spherical objects to humans, the word "ball" is used to refer to, or to describe, anything spherical or near-spherical.
For more information about Ball, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.