Located at the nasa research center in iowa is a 5000 gallon vat of water ,and inside the tank is underwater treadmill designed by d e engineer , for four year newman observe scuba drivers as they simulated walking on the moon and on mars on her underwater moving belt she wanted todiscover how the gravity of the moon and the mar would affect human’ s movement ,
' P' w5 e+ ^2 a2 l9 gTo do this newman attached weights to the drivers and then lower them into the tank and onto the treadmill this weights were carefully adjusted so that the drivers can experience underwater the gravity of the moon and the mars asthey walked on the treadmill newman can conclude that walking on the mas will probably be easier than walking on the moon the moon has lessgravity than the mas does so at the lunar gravity the driver struggled to keep balance and walked awkwardly but at he martain gravity the driver has greater traction and stability and could easily adjust to a pace of 15 miles per hour as newman gradually increased the speed pf a treadmill the driver took longer graceful strides untill they comfortably settled into the even quikerpace newman also know it that at the martian gravity the driver neded less oxygen / @0 |3 Z) Y( p6 m+ |. u( ~
The data newman collected will help future desian of mar sps suit compared to lunar space s martain s pwill require smaller air tanks and to allow for freeer movement the elbow and kees of space suit will also be altered
+ E( ~/ E; m) K8 z6 W8 d 坚持下来的 比较难