Being able to directly access their minds, as a reader, was like discovering an abundant, perpetually replenished, and freely available source of mental oxygen.

NEWYORKER: Olds Rocket 88, 1950

The source of the fire has still not been pinpointed, but it was widely speculated that a group of oxygen generators in the cargo hold may have caused or contributed to a blaze in the cargo hold of the DC-9.

CNN: ValuJet back in the air at last - Sept. 26, 1996