A device, possibly an unmanned aerial drone, was found on the White House grounds during the middle of the night while President Barack Obama and the first lady were in India, but his spokesman said today that it posed no threat. It was unclear whether their daughters, Sasha and Malia, were at home at the time of the incident with their grandmother, Marian Robinson, who also lives at the White House.
Researchers in Japan revealed that improvements should soon be expected in the manufacture of transistors that can be used, for example, to make flexible, paper-thin computer screens. The scientists reviewed the latest developments in research on photoactive organic field-effect transistors, devices that incorporate organic semiconductors, amplify weak electronic signals and either emit or receive light.
Scientists from the Univ. of Southampton have developed a new technique to generate more powerful, more energy-efficient and low-cost pulsed lasers. The technique, which was developed by researchers from the university's Optoelectronics Research Centre (ORC), has potential applications in a number of fields that use pulsed lasers including telecommunications, metrology, sensing and material processing.
By zapping ordinary metals with femtosecond laser pulses researchers from the Univ. of Rochester have created extraordinary new surfaces that efficiently absorb light, repel water and clean themselves. The multifunctional materials could find use in durable, low maintenance solar collectors and sensors.
A new cardboard-robotic toolkit allows children to create custom robots they control wirelessly with hand gestures without formal education in programming or electronics. The system, called HandiMate, uses motorized "joint modules" equipped with wireless communicators and microcontrollers. Children create robots by using Velcro strips to attach the modules to any number of everyday materials and objects.
The stars are aligning for science and engineering, as a new movie about a high school robotics team makes its debut in theaters nationwide. The movie, “Spare Parts,” is based on FIRST Robotics Competition Team 842 - Falcon Robotics, from Carl Hayden Community High School in Phoenix, Ariz., and their famous robotic underdog victory against MIT which was chronicled in the WIRED article “La Vida Robot” in 2005.
Princeton Univ. researchers have built a rice grain-sized laser powered by single electrons tunneling through artificial atoms known as quantum dots. The tiny microwave laser, or "maser," is a demonstration of the fundamental interactions between light and moving electrons.
Public screenings have become an important part of major sports events. In the future, we will be able to enjoy them in 3-D, thanks to a new invention from Austrian scientists. A sophisticated laser system sends laser beams into different directions. Therefore, different pictures are visible from different angles. The angular resolution is so fine that the left eye is presented a different picture than the right one, creating a 3-D effect.
DNA molecules provide the "source code" for life in humans, plants, animals and some microbes. But now researchers report an initial study showing that the strands can also act as a glue to hold together 3-D-printed materials that could someday be used to grow tissues and organs in the laboratory.
In all manufacturing processes there are limits to the surface topographies that can be produced. These limits can be represented in part by crossover scales. Understanding these scales is important for selecting process variables in additive manufacturing (AM). This study evaluated the measured topographies on surfaces made by an AM process for polymers.
Researchers have demonstrated a new way to enhance the emission of single photons by using "hyperbolic metamaterials," a step toward creating devices in work aimed at developing quantum computers and communications technologies. Optical metamaterials harness clouds of electrons called surface plasmons to manipulate and control light.
A large majority of Americans support labeling of genetically modified foods, whether they care about eating them or not. According to a December Associated Press-GfK poll, 66% of Americans favor requiring food manufacturers to put labels on products that contain genetically modified organisms, or foods grown from seeds engineered in labs. Only 7% are opposed to the idea, and 24% are neutral.
For household robots ever to be practical, they’ll need to be able to recognize the objects they’re supposed to manipulate. But while object recognition is a highly studied topic in artificial intelligence, even the best object detectors still fail much of the time. Researchers at MIT believe that household robots should take advantage of their mobility and their relatively static environments to make object recognition easier.
Scientists at Univ. College London, in collaboration with groups at the Univ. of Bath and the Daresbury Laboratory, have uncovered the mystery of why blue light-emitting diodes (LEDs) are so difficult to make, by revealing the complex properties of their main component—gallium nitride—using sophisticated computer simulations.
The Federal Aviation Administration has issued permits to use drones to monitor crops and photograph properties for sale, marking the first time permission has been granted to companies involved in agriculture and real estate. The exemptions to the current ban on commercial drone flights were granted to Advanced Aviation Solutions in Star, Idaho, for “crop scouting,” and to Douglas Trudeau of Tierra Antigua Realty in Tucson, Arizona.
Sandia National Laboratories is tackling one of the biggest barriers to the use of robots in emergency response: energy efficiency. Through a project supported by DARPA, Sandia is developing technology that will dramatically improve the endurance of legged robots, helping them operate for long periods while performing the types of locomotion most relevant to disaster response scenarios.
Just in time for Christmas, Simon Fraser Univ. computing science professor Richard Zhang reveals how to print a 3-D Christmas tree efficiently and with zero material waste, using the world’s first algorithm for automatically decomposing a 3-D object into what are called pyramidal parts. A pyramidal part has a flat base with the remainder of the shape forming upwards over the base with no overhangs, much like a pyramid.
Defect-free nanowires with diameters in the range of 100 nm hold significant promise for numerous in-demand applications. That promise can't be realized, however, unless the wires can be fabricated in large uniform arrays using methods compatible with high-volume manufacture. To date, that has not been possible for arbitrary spacings in ultra-high vacuum growth.
Pretty soon, powering your tablet could be as simple as wrapping it in cling wrap. A Univ. of Toronto team has invented a new way to spray solar cells onto flexible surfaces using miniscule light-sensitive materials known as colloidal quantum dots (CQDs)—a major step toward making spray-on solar cells easy and cheap to manufacture.
Researchers from North Carolina State Univ. have developed a new lithography technique that uses nanoscale spheres to create 3-D structures with biomedical, electronic and photonic applications. The new technique is significantly less expensive than conventional methods and does not rely on stacking 2-D patterns to create 3-D structures.
Researchers at Yale Univ. have joined forces with a leading 3-D biology company, Organovo, to develop 3-D printed tissues for transplant research. As the number of donors for vital tissue and organ transplants decreases worldwide and the demand for transplants increases, 3-D bioprinting technology offers a solution to a long-standing and growing problem.
Purdue Univ. announced that GE Global Research will invest up to $10 million in a five-year partnership focused on R&D in advanced manufacturing. The GE/Purdue Partnership in Research and Innovation in Advanced Manufacturing will push a new era in manufacturing, promoting technologies that enable the digitization, decentralization and democratization of manufacturing to lower cost, improve speed and drive innovation.
A Univ. of Texas at Dallas professor applied robot control theory to enable powered prosthetics to dynamically respond to the wearer’s environment and help amputees walk. In recently published research, wearers of the robotic leg could walk on a moving treadmill almost as fast as an able-bodied person.
An ultra-stable, ultra-thin bonding technology has been adapted by researchers for use as a super-strong vacuum seal. Though it is less than 100 nm thick, the bond can withstand pressure up to 2 megapascals, and its drift, or how much it shifts over time, is on the order of less than 3 trillionths of a meter per hour.
Bathymetric lidars are used today primarily to map coastal waters. At nearly 600 lbs, the systems are large and heavy, and they require costly, piloted aircraft to carry them. A team at the Georgia Tech Research Institute has designed a new approach that could lead to bathymetric lidars that are much smaller and more efficient than the current full-size systems.