It also might explain unusual gamma-ray emissions detected in Earth's atmosphere by the Burst and Transient Source Experiment on the Compton Gamma Ray Observatory . After circumnavigating the globe the balloon will land again in Central Australia in mid-January. Hanson Back to index New system to help hearing impaired trainees A new listening assistance system that will be used beginning in January at the Laboratory's training center in White Rock is designed for Laboratory employees and other personnel who have some level of hearing impairment. The system has been tested and ESH-13 began using it Monday, said Johnson. To use the system, an instructor wears a transmitter about the size of a Laboratory badge and talks into a microphone that clips onto their lapel.
Employees wear a pair of headsets that can be volume controlled.
They also have a receiver to control volume and mute out background noise. The signal from the transmitter to the receiver is transmitted over three separate frequencies. Currently, Lab workers with a hearing impairment either have to sit very close to the instructor or take other measures to hear an instructor, said Johnson. Johnson said ESH-13 purchased six transmitters and 18 receivers. Going to conferences or even in church . . .