The explainer: P vs. NP -- The most notorious problem in theoretical computer science remains open

P vs. NP -- The most notorious problem in theoretical computer science remains open

Technology / Computer Sciences

created Oct 29, 2009 | popularity 4.6 / 5 (22) | comments 5

In the 1995 Halloween episode of The Simpsons, Homer Simpson finds a portal to the mysterious Third Dimension behind a bookcase, and desperate to escape his in-laws, he plunges through. He finds himself wander ...


carbon fiber

Ultra-Long Carbon Nanotubes Could Serve as Future Transmission Lines

Nanotechnology / Nanomaterials

created Nov 10, 2009 | popularity 4.9 / 5 (21) | comments 13

(PhysOrg.com) -- When it comes to carbon nanotubes, the majority of research so far has focused on small-scale applications. But now, a team of researchers from Rice University has created carbon nanotubes ...


Laser-plasma accelerators ride on Einstein's shoulders

Laser-plasma accelerators ride on Einstein's shoulders

Physics / Plasma Physics

created Nov 02, 2009 | popularity 5 / 5 (20) | comments 0

Using Einstein's theory of special relativity to speedup computer simulations, scientists have designed laser-plasma accelerators with energies of 10 billion electron volts (GeV) and beyond. These systems, ...


A system of space solar power system (SSPS)

Japan eyes solar station in space as new energy source

Technology / Energy

created Nov 08, 2009 | popularity 4.8 / 5 (21) | comments 28

It may sound like a sci-fi vision, but Japan's space agency is dead serious: by 2030 it wants to collect solar power in space and zap it down to Earth, using laser beams or microwaves.


Researchers create all-electric spintronics

Researchers create all-electric spintronics

Nanotechnology / Nanophysics

created Oct 27, 2009 | popularity 5 / 5 (20) | comments 3

A multidisciplinary team of UC researchers is the first to find an innovative and novel way to control an electron's spin orientation using purely electrical means.


Longevity tied to genes that preserve tips of chromosomes

Medicine & Health / Genetics

created Nov 11, 2009 | popularity 5 / 5 (20) | comments 0

A team led by researchers at Albert Einstein College of Medicine of Yeshiva University has found a clear link between living to 100 and inheriting a hyperactive version of an enzyme that rebuilds telomeres - the tip ends ...


Researchers invent new method for graphene growth

Researchers invent new method for graphene growth

Nanotechnology / Nanomaterials

created Nov 10, 2009 | popularity 4.9 / 5 (20) | comments 0

(PhysOrg.com) -- A Cornell research team has invented a simple way to make graphene electrical devices by growing the graphene directly onto a silicon wafer.


Superstring theory useful for experimental physics

Superstring theory useful for experimental physics

Physics / General Physics

created Oct 30, 2009 | popularity 3.9 / 5 (25) | comments 9

Superstring theory aims to explain the laws of physics from extremely small strings in various states. Theoretical superstring theory is therefore normally not considered to be particularly relevant for practical ...


A child sleeping (Sleep)

Dreams may have an important physiological function

Medicine & Health / Neuroscience

created Nov 12, 2009 | popularity 3.9 / 5 (25) | comments 9

(PhysOrg.com) -- Dreams have long been assumed to have psychological functions such as consolidating emotional memories and processing experiences or problems, but according to a Harvard psychiatrist and sleep ...


A woman dials a cell phone in her car

WHO study suggests link between cell phones and tumors

Medicine & Health / Cancer

created Oct 27, 2009 | popularity 4.2 / 5 (23) | comments 17

(PhysOrg.com) -- Preliminary results of an International investigation by the World Health Organization (WHO) suggest there may be a "significantly increased risk" of some types of brain tumors after use of ...


Hidden Territory on Mercury Revealed

Hidden Territory on Mercury Revealed

Space & Earth / Space Exploration

created Nov 04, 2009 | popularity 4.8 / 5 (20) | comments 1

The MESSENGER spacecraft's third flyby of the planet Mercury has given scientists, for the first time, an almost complete view of the planet's surface and revealed some dramatic changes in Mercury's comet-like ...


Rare procedure documents how the human brain computes language

Researchers document how brain computes language

Medicine & Health / Neuroscience

created Oct 15, 2009 | popularity 4.9 / 5 (19) | comments 1

A study by researchers at the University of California, San Diego School of Medicine reports a significant breakthrough in explaining gaps in scientists' understanding of human brain function. The study - ...


Sahara

Will Europe Be Powered by the Sahara

Technology / Energy

created Nov 04, 2009 | popularity 4.1 / 5 (23) | comments 27

(PhysOrg.com) -- Europe has long been interested in developing alternative energy sources. And, one of the more interesting places that some Europeans are looking for solar power is the Sahara. With the vast ...


Fantastic Voyage

Fantastic Voyage

Space & Earth / Space Exploration

created Nov 02, 2009 | popularity 4.8 / 5 (19) | comments 3

By travelling to the outer solar system, the two Voyager spacecraft allowed us to see amazing details of far-distant planets and moons.


Space hotel taking bookings for 2012 opening

Space hotel taking bookings for 2012 opening

Space & Earth / Space Exploration

created Nov 05, 2009 | popularity 4.4 / 5 (21) | comments 11

(PhysOrg.com) -- The first orbiting space hotel is on track to open for its first customers in 2012, but hurry, as bookings are filling fast.




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