Satellite communication is a technology that is used to transfer the signals from the transmitter to a receiver with the help of satellites. Communications via satellite have the unique characteristic of the ability to cover the globe with a flexibility that cannot be duplicated with terrestrial links. Mobile satellite service …
Read More »
Businessmen are traveling longer distances to meet potential clients, launch new projects, and negotiate deals, but traveling comes with poor sleep and jet lag. Science tells us jet lag causes everything from headaches to irritability, poor decision making, and loss of concentration. Warfighters are travelers and thus suffer from travelers’ …
Read More »
Since the start of the Covid pandemic, as early research has indicated, the impact of social isolation and other life stressors on mental health has led to an increase in depression and anxiety. This can result in declines in social cohesion and social capital and can increase an individual’s willingness …
Read More »
The AIE program is one key element of DARPA’s broader AI investment strategy that will help ensure the U.S. maintains a technological advantage in this critical area. Past DARPA AI investments facilitated the advancement of “first wave” (rule based) and “second wave” (statistical learning based) AI technologies. DARPA-funded R&D enabled …
Read More »Vehicles propelled by rocket engines are commonly called rockets. Rocket vehicles carry their own oxidizer, unlike most combustion engines, so rocket engines can be used in a vacuum to propel spacecraft and ballistic missiles. Compared to other types of jet engines, rocket engines are the lightest and have the highest …
Read More »
A rapidly increasing percentage of the world’s population is connected to the global information environment. At the same time, the information environment is enabling social interactions that are radically changing how and at what rate information spreads. Both nation-states and nonstate actors have increasingly drawn upon this global information environment …
Read More »
For many people, today’s world is an insecure place, full of threats on many fronts. Protracted crises, violent conflicts, natural disasters, persistent poverty, epidemics and economic downturns impose hardships and undercut prospects for peace, stability, and sustainable development. Such crises are complex, entailing multiple forms of human insecurity. When they …
Read More »
The U.S. military could suffer unacceptably high casualties and struggle to win, or perhaps lose, a war against China or Russia. This implication by the National Defense Strategy Commission stands in contrast to the past several decades during which the U.S. possessed military power without equal. A key capability to …
Read More »In 2018, The American Society of Mechanical Engineers (ASME) named the Pratt & Whitney single crystal turbine blade an historic mechanical engineering landmark. These blades, which can be found in many modern, high-performance gas turbines (a.k.a. jet engines)—including the ones powering the F-22 Raptor, and larger electricity-producing turbines—are grown from a …
Read More »
It is predicted that LEDs will be the ultimate light source in the near future powering indoor illumination, outdoor lamps, traffic signs, advertising displays, car headlights/taillights, etc. Now another technique promises to double the utility of light-emitting diodes (LEDs) by using their light as a medium for communication in a …
Read More »
International Defense Security & Technology Your trusted Source for News, Research and Analysis