National Geographic : 1957 Feb
A 270 Th:nas J. Abercrombic, National Geographic Staff Pressure-suited Balloonists Prepare for a Simulated Six-hour Flight into Space Two weeks before their 76,000-foot ascent, the authors tested equipment at the General Mills laboratories, Minneapolis, Minnesota. Here the Strato-Lab gondola rests in an altitude chamber, called the Bean Pot, whose air pumps create reduced pressures like those of high altitudes. Lid at upper right will complete the seal. The aluminum shell is bedded in ice (not shown) to control temperature. For familiarization, authors Ross (left) and Lewis wear Air Force pressure suits, emergency garments designed to permit respiration and to keep body fluids from boiling upon sudden exposure to extremely low pressures. Capt. Norman Lee Barr, Navy flight surgeon, advises them. Project engineer Harold Froehlich (right) receives instruments from an open hatch.