The idea of strengthening a steel beam with carbon fiber is not new. Approaches have ranged from coating corroded steel i-beams with carbon fiber and epoxy to a patent by Boeing where carbon fiber ...

Scientists have built a real-life tractor beam that can pull actual objects using nothing but light. But it has one big drawback: it’s absolutely tiny. Despite its still tiny size, the new tractor ...

In a New York lab, tractor beams are real -- and becoming powerful enough to be a tool for space exploration. Eric Mack has been a CNET contributor since 2011. Eric and his family live 100% energy and ...

First, the payload requirements and problems faced by traditional multi-beam antenna are described. The user beam of the VHTS payload system mainly uses Ka-band multi-beam antenna for a large range of ...

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 ...