Scientists have simulated, for the first time, the merger of two black holes of vastly different sizes, with one mass 100 times larger than the other. This extreme mass ratio of 100:1 breaks a barrier in the fields of numerical relativity and gr…
PITTSBURGH — A computer algorithm developed at Carnegie Mellon University matched living kidney donors with medically compatible transplant candidates late last month as the national Organ Procurement and Transplantation Network (OPTN), operated by…
Annoyed by how long it took his computer to boot up, Kläui began to think about an alternative. Hard disks are cheap and can store enormous quantities of data, but they are slow; every time a computer boots up, 2-3 minutes are lost while inform…
Researchers at the National Institute of Standards and Technology (NIST) have released an updated version of a computer system testing tool that can cut costs by more efficiently finding flaws. A tutorial on using the tool accompanies the new …
One of the serious threats to a user’s computer is a software program that might cause unwanted keystroke sequences to occur in order to hack someone’s identity. This form of an attack is increasing, infecting enterprise and personal computers, …
Every day our brains are flooded by stimulation — sounds, sights and smells. At the same time, we are constantly engaged in an inner dialogue, ruminating about the past, musing about the future. Somehow the brain filters all this input instantly,…
Princeton computer scientists have developed a new way of tracing the origins and spread of ideas, a technique that could make it easier to gauge the influence of notable scholarly papers, buzz-generating news stories and other information sou…
The 2010 Nobel Prize in Physics went to the two scientists who first isolated graphene, one-atom-thick crystals of graphite. Now, a researcher with the University of Houston Cullen College of Engineering is trying to develop a method to mass-produce…
Athens, Ga. — When we make decisions based on what we think someone else will do, in anything from chess to warfare, we must use reason to infer the other’s next move — or next three or more moves — to know what we must do. This so-called recurs…
BUFFALO, N.Y. — Buy something online, enter your credit card number and mailing address. Simple. Then you come to the box with the CAPTCHA, the Completely Automated Public Turing Test to Tell Computers and Humans Apart. Here, the website attempts …
Goods trains move at night because during daytime the Swiss rail system is used to full capacity by passenger traffic. Unfortunately, it is goods trains which make the most noise — and they operate at exactly the time when most people want to slee…
Children who spend longer than two hours in front of a computer or television screen are more likely to suffer psychological difficulties, regardless of how physically active they are.
The PEACH project, a study of over a 1,000 children aged betwe…