There's a tradeoff to high-altitude work: in thin air, blood becomes more efficient at carrying oxygen, but it's harder to run fast for long periods of time, which means that muscle efficiency suffers.
Early high-altitude work with plastic balloons continued cosmic ray research, air sampling for detecting atomic explosions, photographic flights over foreign terrain, astronomical observations above the disturbances of the troposphere, and even aerodynamic testing of free-falling payloads.
Steve Begnoche, 43, who did a lot of the high-altitude work at the beginning of the decade on the new bridge over the North Nashua River behind the union hall, said he did not know what would replace all the jobs that were done now that the new factories at Devens were finished.
WHETHER on buildings or bridges, putting steel beams together at high altitude is grueling work.
The flight, which killed all five aboard, was found to be the first at high altitude after repair work on the jet's pressurization system.
A number of passengers said some oxygen masks, which should automatically deploy in the cabin when a plane decompresses at high altitude, had not worked.
Jim was quite accommodating of my inability to hike at high altitude, and it worked out fine.
After canceling a planned search of the caves by American Marines, the Pentagon left most of the work to Afghan warlords and their militiamen, who complained that the work, at high altitude and in bitter cold, was not to their liking.
Routine flights into the upper atmosphere by White Knight Two on its own would offer opportunities for regular experimental work at high altitude.
They claimed small lumps of arsenic, crushed between their teeth and swallowed, improved their complexion, made their hair strong and glossy and helped them breathe easier at high altitude or when doing strenuous work.
