外太空模拟实验

Outer Space Simulation Experiment

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  • 1

    Located at the NASA Research Center in Iowa is a 5,000-gallon vat of water, and inside the tank is an underwater treadmill designed by Dava Newman, an aerospace engineer.

    在在爱荷华美国国家航空航天局研究中心有一大桶5000加仑的水,在水槽内有一个水下跑步机,由Dava Newman,一个航空工程师设计。

  • 2

    For four years Newman observed scuba divers as they simulated walking on the Moon and on Mars on her underwater moving belt.

    四年来,Newman观察了水肺潜水员们,他们在她的水下移动带上模拟在月球和火星上行走。(四年来,当水肺潜水员们在她设计的水下移动带上模拟月球和火星上行走时,Newman观察了他们。)

  • 3

    She wanted to discover how the gravity of the Moon and of Mars would affect human movement.

    她想要发现月球和火星的重力是如何影响人体运动的。

  • 4

    To do this, Newman attached weights to the divers and then lowered them into the tank and onto the treadmill.

    为此,Newman附加了重量在潜水员身上并且把他们下放到水箱中的跑步机上。

  • 5

    These weights were carefully adjusted so that the divers could experience underwater the gravity of the Moon and of Mars as they walked on the treadmill.

    这些重量是仔细校准过的,所以潜水员们能够在水下体验月球和火星的重力,当他们行走在跑步机上时。(所以当他们走在跑步机上时,潜水员们能够在水下体验月球和火星的重力)。

  • 6

    Newman concluded that walking on Mars will probably be easier than walking on the Moon.

    Newman推断行走在火星上可能会比行走在月球上容易些。

  • 7

    The Moon has less gravity than Mars does, so at lunar gravity, the divers struggled to keep their balance and walked awkwardly.

    月球比火星重力小,所以在月球的重力下,潜水员们要尽力保持他们的平衡并且步履蹒跚。

  • 8

    But at Martian gravity, the divers had greater traction and stability and could easily adjust to a pace of 1.5 miles per hour.

    但在火星的重力下,潜水员们有较大的抓地力和稳定性并且能够轻松适应1.5英里每小时的步速。

  • 9

    As Newman gradually increased the speed of the treadmill, the divers took longer, graceful strides until they comfortably settled into an even quicker pace.

    当Newman逐渐增加跑步机速度的时候,潜水员们使用长一些,优雅的步伐,直到他们舒服的适应了一个甚至更快的步速。

  • 10

    Newman also noted that at Martian gravity, the divers needed less oxygen. The data Newman collected will help in the future design of Martian space suits.

    Newman也注意到在火星的重力下,潜水员需要较少的氧气。被Newman收集的数据将会在未来有助于火星宇航服的设计。

  • 11

    Compared to lunar space suits, Martian space suits will require smaller air tanks; and, to allow for freer movement, the elbow and knee areas of the space suits will also be altered.

    同月球的宇航服相比,火星的宇航服将会要求小一些的空气箱,并且,允许更加自由的运动,宇航服肘部和区域也将被改变。