News tagged with force
Dark Matter May be Easier to Detect than Previously Thought
Aug 10, 2009 |
4.6 / 5 (30) |
44
(PhysOrg.com) -- The Milky Way, like many other galaxies, is thought to be embedded in massive, lumpy amounts of dark matter that release gamma rays and other emissions. Although at first these emissions seem ...
Possible Fifth Force Would Make Direct Detection of Dark Matter Unlikely
Mar 26, 2009 |
3.9 / 5 (40) |
52
(PhysOrg.com) -- No one knows exactly what a “fifth force” might be, but studies have shown that, if a long-range fifth force does exist, it could have surprising effects on the universe’s structure formation. ...
Salt Water System Could Generate Hydrogen
Mar 18, 2009 |
3.9 / 5 (31) |
18
(PhysOrg.com) -- The idea of generating hydrogen from salt water has often been claimed to work effectively. However, the systems proposed so far generally require a much greater energy input than the energy ...
New Data Suggests We Don’t Live in a Void, and Supports Dark Energy
Jan 28, 2009 |
3.9 / 5 (36) |
75
(PhysOrg.com) -- An alternative proposal to dark energy in which the Earth sits near the center of a large void is undergoing scrutiny, and the results show that void models fit poorly with observed data. ...
Cyclogyro Flying Robot Improves its Angles of Attack
Jan 22, 2009 |
4.3 / 5 (9) |
3
(PhysOrg.com) -- In the past few decades, researchers have been investigating a variety of flying machines. Most studies have focused on improving the flying performance of standard flying mechanisms, rather ...
Peptides control crystal growth with 'switches, throttles and brakes'
Nanotechnology / Bio & Medicine
Nov 23, 2009 |
4.8 / 5 (5) |
0
(PhysOrg.com) -- By producing some of the highest resolution images of peptides attaching to mineral surfaces, scientists have a deeper understanding how biomolecules manipulate the growth crystals. This research ...
A line on string theory
Nov 12, 2009 |
4.7 / 5 (47) |
15
(PhysOrg.com) -- A Harvard theoretical physicist has discussed with scientists at the Large Hadron Collider in Switzerland the possibility that they may discover a theorized "stau" particle, with a lifetime ...
Tailoring the optical dipole force for use on molecules
Oct 29, 2009 |
3.5 / 5 (6) |
1
(PhysOrg.com) -- "Scientists have been working with dipole fields for quite some time," Peter Barker tells PhysOrg.com. "However, most of the work is focused on very small particles, like atoms, or on larger particles, such a ...
New robot skier takes to the slopes (w/ Video)
Oct 23, 2009 |
3.5 / 5 (6) |
1
(PhysOrg.com) -- A new robot skier has been invented that can be fitted with off-the-shelf skis. This is not the first skiing robot, since Japanese scientists have produced their own (see PhysOrg.com article here), but is bigger and heavie ...
Super sticky barnacle glue cures like blood clots
Oct 16, 2009 |
5 / 5 (8) |
0
Barnacles are a big problem for boats. Adhering to the undersides of vessels, carpets of the crustaceans can increase fuel consumption by as much as 25%. Ship owners would love to know how to stop these hitchhikers gluing ...
Quantum-limited Measurement Method for Nanosensors
Oct 14, 2009 |
4.3 / 5 (4) |
0
(PhysOrg.com) -- (PhysOrg.com) -- A team of scientists from the Max Planck Institute of Quantum Optics and the Ludwig Maximilians University have succeeded in applying a novel optical method to nano-mechanical ...
Physicists Measure Elusive 'Persistent Current' That Flows Forever
Oct 08, 2009 |
4.8 / 5 (58) |
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(PhysOrg.com) -- Physicists at Yale University have made the first definitive measurements of "persistent current," a small but perpetual electric current that flows naturally through tiny rings of metal wire ...
For Future Superconductors, a Little Bit of Lithium May Do Hydrogen a Lot of Good
Oct 05, 2009 |
4.3 / 5 (12) |
5
(PhysOrg.com) -- Scientists have a long and unsuccessful history of attempting to convert hydrogen to a metal by squeezing it under incredibly high and steady pressures.
Invading black holes explain cosmic flashes
Sep 18, 2009 |
4.2 / 5 (25) |
12
(PhysOrg.com) -- Black holes are invading stars, providing a radical explanation to bright flashes in the universe that are one of the biggest mysteries in astronomy today.
Study on effect of electricity on liquids bucks conventional science (w/ Video)
Sep 16, 2009 |
4.8 / 5 (16) |
4
(PhysOrg.com) -- Whether gazing into lava lamps or watching balsamic vinegar mix with olive oil, people have long been transfixed by the seemingly mystical way that droplets of one liquid find each other within ...
