Search results for friction:
Models present new view of nanoscale friction
Feb 25, 2009 |
4.8 / 5 (8) |
1
(PhysOrg.com) -- To understand friction on a very small scale, a team of University of Wisconsin-Madison engineers had to think big.
Fingerprints do not improve grip friction
Jun 12, 2009 |
2.4 / 5 (11) |
5
Fingerprints mark us out as individuals and leave telltale signs of our presence on every object that we touch, but what are fingerprints really for? According to Roland Ennos, from the University of Manchester, ...
Bionanomachines: Proteins as resistance fighters
Aug 14, 2009 |
5 / 5 (2) |
0
(PhysOrg.com) -- Friction limits the speed and efficiency of macroscopic engines. Is this also true for nanomachines? A Dresden research team used laser tweezers to measure the friction between a single motor ...
University of Pennsylvania engineers reveal what makes diamonds slippery at the nanoscale
Nanotechnology / Nanomaterials
Jun 23, 2008 |
4.1 / 5 (16) |
0
They call diamonds "ice," and not just because they sparkle. Engineers and physicists have long studied diamond because even though the material is as hard as an ice ball to the head, diamond slips and slides with remarkably ...
Study of gecko feet leads to advances in the science of friction (w/Video)
Jun 04, 2009 |
4.3 / 5 (3) |
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(PhysOrg.com) -- Whether it’s driving on icy roads, rock climbing, or getting a better grip on a bat, the science of friction and adhesion plays a role—large and small—in many human activities. In a new research paper published ...
Get a grip! Blistering new evidence on why we have fingerprints
May 29, 2009 |
4 / 5 (11) |
10
(PhysOrg.com) -- Fingerprints do not help primates grip, as previously thought, scientists have discovered. They actually reduce the friction needed to hold onto flat surfaces. Now Dr Roland Ennos and his ...
'Heftier' atoms reduce friction at the nanoscale
Nov 01, 2007 |
4 / 5 (8) |
0
A research team led by a University of Pennsylvania mechanical engineer has discovered that friction between two sliding bodies can be reduced at the molecular, or nanoscale, level by changing the mass of the atoms at the ...
Snakes use friction and redistribution of their weight to slither on flat terrain
Jun 08, 2009 |
4.3 / 5 (4) |
3
Snakes use both friction generated by their scales and redistribution of their weight to slither along flat surfaces, researchers at New York University and the Georgia Institute of Technology have found. Their ...
Friction force differences offer new means for manipulating nanotubes
Nanotechnology / Nanomaterials
Sep 15, 2009 |
4.5 / 5 (2) |
0
(PhysOrg.com) -- Nanotubes and nanowires are promising building blocks for future integrated nanoelectronic and photonic circuits, nanosensors, interconnects and electro-mechanical nanodevices. But some fundamental ...
Nanocoatings boost industrial energy efficiency
Nanotechnology / Nanomaterials
Nov 18, 2008 |
4.9 / 5 (15) |
0
Friction is the bane of any machine. When moving parts are subject to friction, it takes more energy to move them, the machine doesn't operate as efficiently, and the parts have a tendency to wear out over ...
A better way of lubricating human joints and implants
Nov 08, 2006 |
3.5 / 5 (11) |
0
Researchers at the University of Oxford have discovered that certain lubricants reduce friction much more effectively in water or water-based solutions than in machine oil or air, which may be how the process works in biological ...
First-ever study: lack of critical lubricant causes wear in joints
Nov 06, 2007 |
5 / 5 (4) |
0
Mice that don’t produce lubricin, a thin film of protein found in the cartilage of joints, showed early wear and higher friction in their joints, a new study led by Brown University researchers shows.
Scientist float levitation theory
Aug 06, 2007 |
4.6 / 5 (77) |
0
St Andrews scientists have discovered a new way of levitating tiny objects - paving the way for future applications in nanotechnology.
Probing Question: How do dimples make golf balls travel farther?
Jun 21, 2007 |
3.7 / 5 (19) |
0
A golfer's worst enemy may be divots, but his or her best friend may be dimples -- the dimples on a golf ball that send it sailing farther down the fairway.
Microswimmer propels itself with near-zero friction
Jun 04, 2007 |
4.5 / 5 (47) |
0
Scientists have found that a very slender micro-sized swimmer can propel itself without friction by surface treadmilling. The microswimmer moves by generating backward surface motion at the front end of itself, which is then ...
