Minimally invasive surgery is increasingly used to target small lesions and a growing demand exists for miniaturized medical tools. These include microcatheters, articulated micro-forceps or tweezers to sense and actuate ...
A promising replacement for the toxic and flammable greenhouse gases that are used in most refrigerators and air conditioners has been identified by researchers from the University of Cambridge.
Materials Science
Oct 9, 2019
2
405
The swirling field of a magnet—rendered visible by a sprinkling of iron filings—emerges from the microscopic behavior of atoms and their electrons. In permanent magnets, neighboring atoms align and lock into place to ...
Quantum Physics
Mar 31, 2016
0
573
A team of engineers at the Harvard School of Engineering and Applied Sciences (SEAS), Schlumberger-Doll Research Center in Cambridge, Mass., and the University of Texas, Austin, have created a truly portable device for nuclear ...
General Physics
Aug 4, 2014
0
1
(Phys.org) —Scientists at the Department of Energy's Ames Laboratory have observed magnetic properties typically associated with those observed in rare-earth elements in iron. These properties are observed in a new iron ...
Condensed Matter
Apr 28, 2014
2
0
The device doesn't look like much: a caterpillar-sized assembly of metal rings and strips resembling something you might find buried in a home-workshop drawer. But the technology behind it, and the long-range possibilities ...
Robotics
Nov 30, 2012
2
0
Autonomous University of Barcelona researchers, in collaboration with an experimental group from the Academy of Sciences of Slovakia, have created a cylinder which hides contents and makes them invisible to magnetic fields. ...
General Physics
Mar 22, 2012
10
0
(PhysOrg.com) -- It's a mainstay in biological molecules, but carbon isn't the kind of element you'd expect to find in a permanent magnet. Until now. Not only does carbon become magnetized with a little doctoring, as discovered ...
Condensed Matter
Dec 17, 2010
3
4
Researchers of Eindhoven University of Technology and the Radboud University Nijmegen in The Netherlands show for the first time why ordinary graphite is a permanent magnet at room temperature. The results are promising for ...
Nanophysics
Oct 4, 2009
1
1
For the first time, scientists have built a fusion experiment using permanent magnets, a technique that could show a simple way to build future devices for less cost and allow researchers to test new concepts for future fusion ...
Plasma Physics
Apr 2, 2024
6
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