During the latter part of the 20th century, string theory was put forward as a unifying theory of physics foundations. String ...

NASA has successfully tested an electric force field on the Moon that protects spacecraft from destructive lunar dust. The ...

To calculate the force on a wire carrying a current at right angles to a magnetic field, use the equation: 2 A flows through a 50 cm wire. Calculate the force acting on the wire when it is placed ...

Quantum field theory ... The Dirac equation had a sting in its tail: it predicted the existence of a particle identical to the electron in every way, apart from the opposite electric charge.

For over half a century, scientists suspected a quiet but powerful electric field might be influencing Earth’s upper atmosphere. Now, thanks to a daring rocket mission near the North Pole, the mystery ...