News tagged with ball
'Space ball' drops on Namibia
A large metallic ball fell out of the sky on a remote grassland in Namibia, prompting baffled authorities to contact NASA and the European space agency.
Space & Earth / Space Exploration
Dec 22, 2011 |
4.2 / 5 (31) |
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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 |
4.2 / 5 (20) |
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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 |
4.8 / 5 (16) |
0
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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 |
4.2 / 5 (17) |
0
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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 |
4.2 / 5 (17) |
7
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 |
4.7 / 5 (15) |
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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.
Ball lightning may sometimes be explained as hallucinations
(PhysOrg.com) -- Physicists in Austria have calculated the magnetic fields associated with certain types of lightning strikes are powerful enough to create hallucinations of hovering balls of light in nearby ...
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 |
4 / 5 (11) |
6
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Will the new World Cup soccer ball bend? Physics plays a role in on-ground action
Physics experts at the University of Adelaide believe the new ball created for the 2010 World Cup, called the Jabulani, will play "harder and faster", bending more unpredictably than its predecessor.
Jun 08, 2010 |
4.3 / 5 (10) |
2
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Study explains science of soccer
With the attention of sports fans worldwide focused on South Africa and the 2010 FIFA World Cup, U.S. scientist John Eric Goff has made the aerodynamics of the soccer ball a focus of his research.
Jul 01, 2010 |
2.9 / 5 (13) |
0
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 |
4.4 / 5 (8) |
5
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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 |
3.2 / 5 (11) |
21
Could cannon balls from the early 19th century sink warships?
A joint experiment by researchers at the University of Haifa and Rafael Advanced Defense Systems Ltd. succeeded in solving the riddle: Could cannon balls from the early 19th century sink warships?
Other Sciences / Archaeology & Fossils
Jul 15, 2009 |
4.1 / 5 (8) |
1
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 |
4.3 / 5 (6) |
3
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.