A pickup is a device that captures the vibration of the metal guitar strings and changes them into electronic sound signals.

VOA: special.2009.09.27

Another likely cause is a problem within the body's defenses against disease, when the defenses misunderstand signals and attack the body.

VOA: special.2009.01.06

Last week the WHO's International Agency for Research on Cancer listed the signals from wireless devices as "possibly carcinogenic."

VOA: special.2011.06.06

The short wave signals bounce off the ionosphere that surrounds the Earth,back to the ground and then back to the ionosphere.

VOA: special.2010.12.08

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

VOA: special.2009.01.06

If a heart beats too slowly, the device will use electrical signals to help set a normal rate.

VOA: special.2010.06.29

If a heart beats too slowly, the pacemaker will use electrical signals to help set a normal rate.

VOA: special.2010.06.02

He learned to get light to go far enough down a glass fiber to pass on signals.

VOA: special.2009.12.08

The idea is to activate the remaining arm nerves to make electrical signals to operate prosthetic devices.

VOA: special.2009.03.10

The eighty-three kilogram satellite, called Sputnik, had two radios that sent signals as it circled the world.

VOA: special.2009.06.10

The device made it possible to strengthen radio signals and to send them over long distances.

VOA: special.2010.01.31

They also suggested taking measures to reduce exposure to the signals, like hands-free devices or texting.

VOA: special.2011.06.06

Electric signals start in nerve cells and travel along these fibers to and from the brain.

VOA: special.2009.01.06

During the second orbit, one of these signals warned that the heat shield might not be locked firmly to the bottom of the spacecraft.

VOA: special.2009.06.17