If you could squeeze two or three times more cellular telephone conversations into the same amount of bandwidth, how much would that be worth? To most wireless companies, the answer is, millions of ...

Light is pushy. The physical pressure of photons is what allows for solar sail space missions that ride on sunlight, and what allows for dreams of lasers that will push those sails even faster. And ...

There's no escaping it: Though the tractor beam is a staple of sci-fi space-faring scenarios, it's also extremely counter-intuitive. How does one pull something in via an outward-shooting beam? A few ...

Understanding how helical, curved beams operate — how their spiral cuts accommodate angular and parallel misalignment, axial motion, and system vibrations — is the key to knowing how they will perform ...

(Nanowerk News) Junhao Lin, a Vanderbilt University Ph.D. student and visiting scientist at Oak Ridge National Laboratory (ORNL), has found a way to use a finely focused beam of electrons to create ...

Composite beams have become an integral element in modern structural engineering, combining dissimilar materials to exploit their complementary mechanical properties. This field of study encompasses ...

Scan the skyline of New York City and it’s almost everywhere you look. Same thing with Chicago and Philadelphia and just about any big city where the buildings poke into the sky. Everyone knows ...

Best suited for rich scattering environment. A linearly arranged and equally spaced array of antennas forms the basic structure of a beam former. In order to form a beam, each user's information ...