Professor Taylor says his team used this method to discover that butterflies depend on information about the Earth's magnetic fields.

VOA: special.2010.04.27

The test, also known as MRI, involves studying the magnetic signals from all the cells in the body.

VOA: special.2009.01.06

It says there is not enough evidence to decide about either digital mammography or magnetic resonance imaging instead of traditional film mammography.

VOA: special.2009.11.18

It uses an MRI or magnetic resonance imaging machine to look for abnormalities in the brain.

VOA: special.2010.12.21

A compass is a device containing a metal object that points toward the magnetic north pole.

VOA: special.2010.07.14

Magnetic Resonance Imaging is one way to tell if a patient has multiple sclerosis.

VOA: special.2009.01.06

That means functional magnetic resonance imaging.

VOA: special.2010.10.13

"It includes three hundred million dollars to buy new cars for the government, eight billion dollars for high-speed rail projects, such as a 'magnetic levitation' line from Las Vegas to Disneyland, and one hundred forty million dollars for something called 'volcano monitoring.'

VOA: special.2009.02.27

And London's Transport Authority has promoted the Oyster card, a magnetic payment system that keeps track of where people have been and when.

VOA: standard.2010.04.01

Council members go door-to-door, distributing special magnetic emergency cards to refugee and immigrant homes.

VOA: standard.2010.07.22

"If you're right, what is the origin of the magnetic fields?"

VOA: standard.2010.05.04