For nearly 20 years, physicists and engineers have chased the idea of invisibility. Early efforts focused on hiding objects from light using so-called metamaterials with extreme and often unrealistic ...

Engineers at the University of Leicester have developed a new concept for a “magnetic cloaking device” that could shield ...

Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...

Tiny deviations: the new metal detector looks for minute disturbances in Earth’s magnetic field. (Courtesy: iStock/muffinmaker) A compact, low-cost and low-power metal detector that can identify the ...

Many creatures in nature, including butterflies, newts and mole rats, use Earth's inherent magnetic field lines and field intensity variations to determine their geographical position. The spatial ...

Active boundary heating and cooling can make a small object look much larger to thermal sensors, a step toward compact ...