John Pendry is known for creating an invisibility cloak. Twenty years on, he has used the same principles to fashion an even ...

Whether you want to save desktop real estate or improve your posture, a properly positioned monitor stand, shelf, or arm can help. By John Alexander, Stan Horaczek Updated Apr 1, 2026 9:27 PM EDT Add ...

Spread bets and CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 68% of retail investor accounts lose money when trading spread bets and CFDs with this ...

Abstract: Based of the uniform geometrical diffraction theory method an asymptotic solution is obtained for the 3D vector problem of diffraction of the field of a vertical half-wave dipole placed ...