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.

Dec 22, 2011
4.2 / 5 (39) 54

Study explains the mystery of ball lightning

(Phys.org)—Sightings of ball lightning have been made for centuries around the world – usually the size of a grapefruit and lasting up to twenty seconds – but no explanation of how it occurs has been ...

Oct 12, 2012
4.4 / 5 (30) 11 | with audio podcast

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. ...

Jun 24, 2014
4.6 / 5 (21) 8

A new light wave

Hold a magnifying glass over the driveway on a sunny day and it will focus sunlight into a single beam. Hold a prism in front of the window and the light will spread out into a perfect rainbow. Lenses like ...

Aug 12, 2013
4.6 / 5 (16) 4 | with audio podcast

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) 13 | with audio podcast

NASA team studies ball bot as future space explorer

(Phys.org) —A July NASA report on the Super Ball Bot said that lightweight and low-cost missions will become increasingly important to NASA's exploration goals. Current robot designs call for a combination ...

Dec 28, 2013 weblog
4.7 / 5 (15) 9 | with audio podcast

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.

Dec 02, 2010 report
4.4 / 5 (13) 17 | with audio podcast