Disturbing new videos give the clearest view yet of the moment the American Airlines passenger plane and Army helicopter exploded into pieces — sending huge chunks of fiery debris crashing into the ...

It was here that Addams noticed a strange optical illusion. After staring a few seconds at the falling water, he moved his gaze to the rocks nearby and was surprised by the impression—albeit a ...

Gravitational potential energy of the water \(\rightarrow\) kinetic energy. Kinetic energy of the falling water \(\rightarrow\) electrical energy Waves, tides and hydroelectric power are renewable ...