From inflatable slides to ninja courses and high-flying trampolines, Long Island is home to great play spaces that allow your ...

Caltech scientists are developing laser-driven lightsails that could push spacecraft beyond our solar system. Their research ...

Laser diodes are semiconductors that generate light and amplify it using repeated reflection or "optical feedback." Once the ...

Laser diodes are semiconductors that generate light and amplify it using repeated reflection or 'optical feedback'. Once the light has achieved ...