Helmets that do a better job of preventing concussions and other brain injuries. Earphones that protect people from damaging noises. Devices that convert "junk" energy from airport runway vibrations into usable power.
Nanomaterials
Apr 4, 2018
0
188
Three mathematicians have a different explanation for the accelerating expansion of the universe that does without theories of "dark energy." Einstein's original equations for General Relativity actually predict cosmic acceleration ...
General Physics
Dec 14, 2017
160
2955
Picture a grasshopper landing randomly on a lawn of fixed area. If it then jumps a certain distance in a random direction, what shape should the lawn be to maximise the chance that the grasshopper stays on the lawn after ...
Mathematics
Nov 22, 2017
6
177
(Phys.org)—A team of researchers at Universite Paris-Diderot has uncovered the reason for wobbling of wheeled suitcases. In their paper published in Proceedings of the Royal Society A, the group explains the physics behind ...
A new study by mechanical engineers at UC Berkeley finally shows why your shoelaces may keep coming untied. It's a question that everyone asks, often after stopping to retie their shoes, yet one that nobody had investigated ...
General Physics
Apr 11, 2017
2
2581
(Phys.org)—A team of researchers from several institutions in Hungary has conducted experiments meant to test the possibility that the Vikings actually did use sunstones to navigate. In their paper published in Proceedings ...
(Phys.org)—A team of researchers with The University of Adelaide and one with University of Angers has found that the probability of a unanimous agreement in witnessed events is low enough that instances of such are likely ...
Origami, the ancient art of paper folding, may soon provide a foundation for antennas that can reconfigure themselves to operate at different frequencies, microfluidic devices whose properties can change in operation—and ...
Engineering
Jan 28, 2016
0
801
Some of the most prized violins in the world were crafted in the Italian workshops of Amati, Stradivari, and Guarneri—master violinmaking families from the 17th and 18th centuries who produced increasingly powerful instruments ...
General Physics
Feb 10, 2015
7
1472
When participants in a charity event took the first walk across the newly opened London Millennium Footbridge in 2000, their feet fell into sync, and the natural side-to-side motion of their steps caused the suspension bridge ...
General Physics
Feb 2, 2015
7
291
