When maneuvering for position in air-to-air combat, pilots able to pull the most Gs without losing consciousness have an advantage. Engineers at Carleton Technologies Inc., a manufacturer of pneumatic ...

Investigators have now narrowed down what may have sparked the flame in a deadly ambulance fire last month to a portable oxygen tank and regulator. Investigators determined it was an accident and ...

KATHMANDU, Nepal — On a frozen lip of rock near the summit of Mount Everest, the climber Adrian Ballinger watched as his teams’ oxygen regulators failed, one after another. Several of them hissed, ...