1.   A transponder is a device that emits radar signals identifying and locating aircraft for air traffic controllers.

2.   The device emits a signal which can be picked up by a submarine.

3.   This was suspected because when the particles collide they emit radio signals.

4.   A new technology called Arial View uses badges that emit infrared signals every two seconds to monitor electronically the exact location of employees.

5.   A wire from the pipe connects at the bottom of the net to a transmitter that emits TV signals.

6.   But as the week neared an end, he did not emit any signals of budging.

7.   But in any case, aircraft routinely can emit electronic signals of distress that show up prominently on the radar screens of traffic controllers.

8.   Lincoln Laboratory are developing a system known as Canary in which human immune cells are genetically engineered to latch onto pathogens and emit a signal when they do.

9.   Neither device has emitted any signals that have been detected, Rasmussen said.

10.   Remote-controlled electronics such as televisions and VCRs are controlled through boxes that emit infrared signals.