There is also  growing concern that the widespread availability of radiological materials may result in a dirty bomb attack. Recently a secret group of fewer than 10 people in undercover congressional operation was easily able to buy the raw ingredients for a dirty bomb in US. This has set off alarms among …

Today, silicon microchips underlie every aspect of digital computing. Now Moore’s Law is stuttering, and the world’s supercomputer builders are confronting an energy crisis. But those big gains using silicon seem to have ended, with the high-end Intel Core i7 chips, for instance, have been on computer store shelves for …

Graphene is a 1-atom-thick layer of tightly bonded carbon atoms arranged in a hexagonal lattice. Graphene the world’s first 2D nanomaterial, is widely regarded as the “wonder material” of the 21st century due to the combination of its extraordinary properties. As a single layer of graphite, it is the thinnest …

As the focus of the US Army shifts from low intensity conflicts against guerrillas, non-state actors, and terrorists to near peers like Russia, China and North Korea which have mechanized ground forces, the Army is trying to boost its conventional firepower, both in lethality and range.   The United States …

Nanoparticles have unique thermal, optical, physical, chemical, magnetic and electrical properties compared to their bulk material counterparts. These features can be exploited for next generation biosensors, electronics, catalysts and antimicrobials. Metallic nanoparticles are one important and widely studied group of materials, showing great diversity and many different uses   Over …

Biomedical sensors present an exciting opportunity to measure human physiologic parameters in a continuous, real-time, and nonintrusive manner by leveraging semiconductor and flexible electronics packaging technology. These sensors incorporate a broad range of advances in microelectromechanical (MEMS), biological and chemical sensing, electrocardiogram (ECG), electromyogram (EMG), and electroencephalogram (EEG)-based neural sensing …

Russia is seeking to further bolster its sub-surface capabilities, with new generations of conventional and nuclear propulsion submarines, which promise to be significantly more difficult to detect and track for western naval forces. This includes the Yasen, Lada, Borei and Kalina classes of submarines. Russia’s United Shipbuilding Corporation (UAC) has announced …

Russia is seeking to further bolster its sub-surface capabilities, with new generations of conventional and nuclear propulsion submarines, which promise to be significantly more difficult to detect and track for western naval forces. This includes the Yasen, Lada, Borei and Kalina classes of submarines. Russia’s United Shipbuilding Corporation (UAC) has …

United States opened a new line of combat against the Islamic State, directing the military’s eight-year-old Cyber Command for the first time to mount computer-network attacks that are now being used alongside more traditional weapons. In 2009, US established, USCYBERCOM for more effective and coordinated efforts for conducting cyberspace operations. Cyber Command, …

The homing pigeon is a variety of domestic pigeon (Columba livia domestica) derived from the rock pigeon, selectively bred for its ability to find its way home over extremely long distances. The wild rock pigeon has an innate homing ability, meaning that it will generally return to its nest, (it …