A shock front is usually considered as a simple discontinuity in density or pressure. Yet in strongly shocked gases, the atoms are ionized into electrons and ions. The large difference in the electron pressure across the ...
General Physics
Aug 11, 2017
0
2
For many years, engineers have sought to create a special kind of surface: one that can both repel and absorb liquids, and whose ability to do so—its "wetting behaviour"—can be quickly and precisely controlled. The technology ...
Condensed Matter
Jul 25, 2017
1
362
Friction is all around us, working against the motion of tires on pavement, the scrawl of a pen across paper, and even the flow of proteins through the bloodstream. Whenever two surfaces come in contact, there is friction, ...
Nanophysics
Jun 4, 2015
1
1673
Professor Kazuaki Sawada and Dr. Takigawa of the National Center for Geriatrics and Gerontology and colleagues at Toyohashi University of Technology have established an easy to use, low-cost, rapid, and high sensitivity semiconductor-imaging ...
Engineering
Sep 24, 2014
0
0
Electrically controlled glasses with continuously adjustable transparency, new polarisation filters, and even chemosensors capable of detecting single molecules of specific chemicals could be fabricated thanks to a new polymer ...
Polymers
Apr 17, 2014
1
0
(Phys.org) —Oceans carry enough potential energy to make a difference. The devil is in the details. Finding a way to harness all that power had prevented wave power from being seen as a practical solution but now technologists ...
By altering the genetic makeup of normally "unexcitable" cells, Duke University bioengineers have turned them into cells capable of generating and passing electrical current.
Biotechnology
Jul 19, 2011
0
0
(PhysOrg.com) -- Sensors that can detect a heartbeat up to a meter away are now a reality thanks to a team of scientists at the University of Sussex.
Engineering
Jun 29, 2010
2
0
(PhysOrg.com) -- To power a very small device like a pacemaker or a transistor, you need an even smaller generator. The components that operate the generator are smaller yet, and the efficiency of those foundational components ...
Nanophysics
Oct 22, 2009
0
0
Geckos and other lizards have long been known for their incredible ability to shed their tails as a decoy for predators, but little is known about the movements and what controls the tail once it separates from the lizard's ...
Plants & Animals
Sep 9, 2009
6
0
