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Waspie_Dwarf

How much gravity is enough?

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How much gravity is enough? York U-led research studies how astronauts determine ‘up’ in space

TORONTO, September 3, 2014 - Keeping upright in a low-gravity environment is not easy, and NASA documents abound with examples of astronauts falling on the lunar surface. Now, a new study by an international team of researchers led by York University professors Laurence Harris and Michael Jenkin, published today in PLOS ONE, suggests that the reason for all these moon mishaps might be because its gravity isn’t sufficient to provide astronauts with unambiguous information on which way is “up”.

“The perception of the relative orientation of oneself and the world is important not only to balance, but also for many other aspects of perception including recognizing faces and objects and predicting how objects are going to behave when dropped or thrown,” says Harris. “Misinterpreting which way is up can lead to perceptual errors and threaten balance if a person uses an incorrect reference point to stabilize themselves.”

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