Cosmic strings might emit cosmic sparks, answer cosmological questions October 09, 2008 | User rating: 4.1 / 5 after 42 vote(s)
| User comments: 15
(PhysOrg.com) -- For astronomers, understanding what happened in the early moments of the universe could answer many questions in physics and astronomy. One possible player in the early universe is cosmic strings, which arise ... | |
 Long-Lasting Quantum Memory Leads to Long-Distance Quantum Communication October 07, 2008 | User rating: 4.2 / 5 after 43 vote(s)
| User comments: 6
(PhysOrg.com) -- Physicists have taken a step closer to realizing long-distance quantum communication, in which a quantum state is transferred from one location to another by becoming entangled with a traveling ... | |
 In quantum channels, zero plus zero can equal non-zero October 06, 2008 | User rating: 4.6 / 5 after 55 vote(s)
| User comments: 8
(PhysOrg.com) -- Physicists have discovered a strange characteristic of quantum communication channels. If two quantum channels each have a transmission capacity of zero, they may still have a nonzero capacity ... | |
 Nanowire technology could make LCDs brighter, thinner, and cheaper October 03, 2008 | User rating: 4.5 / 5 after 55 vote(s)
| User comments: 3
(PhysOrg.com) -- As nanoimprinting technology advances, scientists have shown that using nano-sized polarizers could significantly enhance the contrast ratio in liquid crystal displays (LCDs). For consumers, ... | |
 Counterintuitive physics may help everyone drive home quicker October 02, 2008 | User rating: 4.5 / 5 after 73 vote(s)
| User comments: 19
If you're trying to drive to a destination as quickly as possible, you might think that knowing the traffic conditions would help you choose the quickest route for yourself. Traffic reports and new GPS technologies ... | |
 In radiation 'ventriloquism,' electromagnetic waves travel backwards September 23, 2008 | User rating: 4.4 / 5 after 78 vote(s)
| User comments: 12
(PhysOrg.com) -- Typically, electromagnetic waves travel away from their sources. For instance, a radar system emits radio waves that travel all the way to a target, such as a car or plane, before being reflected ... | |
 Nanopencil Can Provide Terabit Data Storage Density September 22, 2008 | User rating: 4.5 / 5 after 54 vote(s)
| User comments: 7
(PhysOrg.com) -- Scientists have fabricated a 'nanopencil' with a tip so small that it can be used as a scanning probe in ultrahigh-density computer data storage systems. | |
 A broadband single-photon source September 19, 2008 | User rating: 4.7 / 5 after 36 vote(s)
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As science makes progress toward practical quantum computing, improved quantum cryptography and scalable quantum communications systems, single photon sources will become more important. Until now, though, ... | |
 'Calm before storm' may foreshadow climatic tipping point September 17, 2008 | User rating: 3.6 / 5 after 132 vote(s)
| User comments: 62
(PhysOrg.com) -- Abrupt climate change has occurred on earth many times over the past millions of years. Climate scientists hypothesize that these sharp transitions may be caused when the earth system reaches ... | |
 Physicists hope to tie light beams in knots September 12, 2008 | User rating: 4.6 / 5 after 131 vote(s)
| User comments: 33
Usually, light beams shine in a straight line, with the possible exception of light being bent by gravity. But scientists are now investigating how to make light beams into looped and knotted configurations. ... | |
Polls may underestimate Obama's support by 3 to 4 percent, researchers say October 10, 2008 | User rating: 3 / 5 after 44 vote(s)
| User comments: 21
(PhysOrg.com) -- Current polls of the presidential election may be underestimating Barack Obama's support by 3 to 4 percent nationally and possibly larger margins in the Southeast and some strongly Republican states, according ... | |
 New spintronics effect could lead to magnetic batteries October 10, 2008 | User rating: 4.6 / 5 after 48 vote(s)
| User comments: 6
(PhysOrg.com) -- Physicists have recently discovered that heating one side of a magnetized nickel-iron rod causes electrons to rearrange themselves according to their spins. This so-called "spin Seebeck effect" ... | |
Making waves: Mathematicians crack quantum chaos conjecture October 10, 2008 | User rating: 4.7 / 5 after 50 vote(s)
| User comments: 3
The American Institute of Mathematics announces that Soundararajan and Roman Holowinsky have proven a significant version of the quantum unique ergodicity conjecture. Their work, based in the pure mathematics area of number ... | |
Scientists Find First Immune Responses to HIV Infection Ineffective October 09, 2008 | User rating: 4.9 / 5 after 7 vote(s)
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(PhysOrg.com) -- Scientists have identified the very first antibodies to appear in the wake of HIV infection and have concluded that they are virtually impotent in mounting a meaningful defense against the invading virus. | |
 At 2.8 km down, a 1-of-a-kind microorganism lives all alone October 09, 2008 | User rating: 4.9 / 5 after 50 vote(s)
| User comments: 8
The first ecosystem ever found having only a single biological species has been discovered 2.8 kilometers (1.74 miles) beneath the surface of the earth in the Mponeng gold mine near Johannesburg, South Africa. ... | |
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