The mathematics of golf
(Phys.org)—The official Rules of Golf, which are continually being revised and updated as new equipment emerges, have close ties to mathematics. In many cases, math is used to place limitations on golf equipment, such as ...
News tagged with ball
Scientists discover second purpose for vortex generators
(Phys.org)—An airplane's vortex generators, which look like small fins on its surface, improve the plane's aerodynamics similar to the way in which the dimples on a golf ball improve the ball's aerodynamics: by delaying ...
On the tiniest of scales, chemistry isn't all about 'billiard-ball' reactions
Scientists are now one step closer to better understanding how to live in a "quantum" world—and not just from watching the character "Ant-Man" in the Marvel movie franchise.
Quantum Physics
Jan 18, 2022
1
138
Dogs notice when computer animations violate laws of physics
A pair of researchers at the Medical University of Vienna and University of Vienna has found that dogs notice when objects in the world do not conform to the laws of physics. In their paper published in the journal Biology ...
Researchers recreate the sun's solar wind and plasma 'burps' on Earth
The sun's solar wind affects nearly everything in the solar system. It can disrupt the function of Earth's satellites and creates the lights of the auroras.
Space Exploration
Jul 29, 2019
67
913
Researchers create ultra-lightweight ceramic material that withstands extreme temperatures
UCLA researchers and collaborators at eight other research institutions have created an extremely light, very durable ceramic aerogel. The material could be used for applications like insulating spacecraft because it can ...
Materials Science
Feb 14, 2019
9
430
Particles surf their own waves, reveal how microbes and cells move through human body
Surf's up for microbes swimming beside red blood cells.
Soft Matter
Sep 17, 2018
0
399
Supraballs offer a new way to color materials
An international team of researchers has created a new way to color manufactured materials. In their paper published in the journal Science Advances, the group describes how they created the new coloring technique and why ...
Morphable surfaces could cut air resistance
There is a story about how the modern golf ball, with its dimpled surface, came to be: In the mid-1800s, it is said, new golf balls were smooth, but became dimpled over time as impacts left permanent dents. Smooth new balls ...
General Physics
Jun 24, 2014
8
0
Physicists test aerodynamics of soccer ball types prior to World Cup (w/ Video)
(Phys.org) —A pair of physicists with Japan's University of Tsukuba has tested the aerodynamics of several types of soccer balls to determine which fly the most true when kicked. Sungchan Hong and Takeshi Asai report their ...
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.
This text uses material from Wikipedia, licensed under CC BY-SA
