You’re sitting at home minding your own business when you get a call from your credit card’s fraud detection unit asking if you’ve just made a purchase at a department store in your city. It wasn’t you who bought expensive electronics using your credit card — in fact, it’s been in your pocket all afternoon. So, how did the bank know to flag this single purchase as most likely fraudulent?
Scientists have produced new maps of Jupiter that show the continuing changes in its famous...
Andrii Chumak conducts research about the fundamental physics of next-generation data processing...
A remarkably detailed animation of the movement of the densest and coldest water in the world...
How do you quantify something as complex and personal as humor? Researchers have developed a mathematical method of doing just that. The idea for the study was born from earlier research in which test subjects with aphasia were asked to review letter strings and determine whether they were real words or not. They noticed a trend: participants would laugh when they heard made-up non-words like snunkoople.
After the successful restart of the Large Hadron Collider and its first months of data taking with proton collisions at a new energy frontier, the LHC is moving to a new phase, with the first lead-ion collisions of season 2 at an energy about twice as high as that of any previous collider experiment. Following a period of intense activity to re-configure for heavy ion beams, the beams were put into collision for the first time.
German team TUMuch Phun from Technical University of Munich (TUM) won the Highest Linpack Award in the Student Cluster Competition (SCC) held November 16-18, 2015, during the worldwide supercomputing conference and exhibition SC15 in Austin, TX. Performance of 7.1 Tflops has been achieved on RSC PetaStream cluster with computing nodes based on Intel Xeon Phi.
Researchers have advanced a long-standing problem in quantum physics — how to send "entangled" particles over long distances. Scientists and engineers are interested in the practical application of this technology to make quantum networks that can send highly secure information over long distances — a capability that also makes the technology appealing to governments, banks and militaries.
The size of a surgically removed tumor is generally thought to relate to the risk of the cancer spreading to other regions of the body. But because tumor cells may metastasize at different times and the rate of spread is difficult to assess, the relationship between size and relative risk of recurrence after surgery is challenging to calculate. Mathematical models can provide useful clues and may help to predict the risk of cancer spread.
Researchers have predicted existence of a new type of particle called type-II Weyl fermion in metallic materials. When subjected to a magnetic field, materials containing the particle act as insulators for current applied in some directions and as conductors for current applied in other directions. The researchers theorize that the particle exists in a material known as tungsten ditelluride.
Animations that compress 25 years of satellite images into just one second reveal the complex behavior and flow of glaciers in the Karakoram mountain range in Asia. A glaciologist used images captured by three different Landsat satellites to create time-lapse sequences of four regions: Baltoro, Panmah, Skamri-Sarpo Laggo and Shaksgam. This mountain range is home to some of the highest peaks in the world, including the famous K2.
The solar system might be a lot hairier than we thought. A new study proposes the existence of long filaments of dark matter, or "hairs." Dark matter is an invisible, mysterious substance that makes up about 27 percent of all matter and energy in the universe. The regular matter, which makes up everything we can see around us, is only five percent of the universe. The rest is dark energy, a strange phenomenon...
A star called KIC 8462852 has been in the news recently for unexplained and bizarre behavior. NASA's Kepler mission had monitored the star for four years, observing two unusual incidents, in 2011 and 2013, when the star's light dimmed in dramatic, never-before-seen ways. Something had passed in front of the star and blocked its light, but what?
This image over part of the Italian island of Sardinia comes from the very first acquisition by the Sentinel-2A satellite. The area pictured covers a section of the island’s northwestern Sassari province, with parts of the coast visible along the left side and bottom. Agricultural fields dominate the inland, with a large area of vineyards at the center of the image.
Scientists often use the combined power of multiple telescopes to reveal the secrets of the Universe — and this image is a prime example of when this technique is strikingly effective. The yellow-hued object at the center of the frame is an elliptical galaxy known as Hercules A, seen by the Earth-orbiting NASA/ESA Hubble Space Telescope. In normal light, an observer would only see this object floating in the inky blackness of space...
Nearly all forensic investigations involve digital evidence. With current forensic workstations, what used to take days to download can now be accomplished in a matter of hours. This is extremely important when the suspect remains on the street until the contents are downloaded and reviewed. Forensic workstation builders, working with the legal community, learned how to configure hardware and software to preserve the chain of evidence...
The tungsten lightbulb has served well over the century or so since it was introduced, but its days are numbered now with the arrival of LED lighting, which consume 1/10 the power of incandescent bulbs and have a lifespan 30x longer. Potential uses of LEDs are not limited to illumination: smart lighting products offer various additional features, including linking your laptop or smartphone to the Internet. Move over Wi-Fi, Li-Fi is here.
“I counted everything. I counted the steps to the road, the steps up to church, the number of dishes and silverware I washed … anything that could be counted, I did.” So said Katherine Johnson, recipient of the 2015 National Medal of Freedom. Born in 1918 in the little town of White Sulfur Springs, WV, Johnson was a research mathematician, who by her own admission, was simply fascinated by numbers.
This 63X photograph shows a mouse colon colonized with human microbiota. It won second place in the 2015 Nikon Small World Photomicrophotography Competition, which recognizes excellence in photography with the optical microscope and was taken using confocal microscopy.