Fermions are just one of the basic categories of particles, and almost all of them are Dirac, meaning they have a complementary and distinctive antiparticle—think electron and positron.

The a.c.-driven diode pumps move the liquid in the positive direction. The increase in the d.c. component increases the (negative) electrophoretic velocity of the particles.

Had this move happened weeks ago – before Unity went on record to deny it was looking to sell up – the word “acquisition” would have probably featured prominently in any editorials or columns that ...

The particles in a gas have enough energy to overcome the forces of attraction between the particles, so are free to move in any direction.

Motorized microscopic matchsticks move in water with sense of direction Date: September 10, 2013 Source: University of Warwick Summary: Chemists, physicists and computer scientists have come ...

Electric current An electric current is a flow of charged particles in one direction. A source of energy, such as a cell or battery, is required to make the charged particles move in one direction.