A magnetic field is invisible ... different positions in the magnetic field, marking the needle direction each time join the points to show the field lines The needle of a plotting compass ...

This revealed a dynamo-like process that could allow a neutron star to develop a weaker magnetic field at its surface than is ... Like an ice skater drawing in their arms to increase their spin ...

A flower-shaped structure only a few micrometers in size made of a nickel-iron alloy can concentrate and locally enhance ...

Many migratory birds use Earth’s magnetic field as a compass ... the changing angle of Earth’s surface relative to its magnetic lines – and magnetic declination – the difference in ...