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A 36 meter radius, rotating long-duration space habitat simulation on Earth, simulating 1.4 gees at 10 RPM. 1.4 gees is the vector sum of 1 gee horizontal and 1 gee vertical. Experimental subjects with BMI < 20, having a "gravitational BMI" < 28 but the same "metabolic BMI". A 9 meter radius, rotating long-duration space habitat simulation on Earth, simulating 1.4 gees at 10 RPM. 1.4 gees is the vector sum of 1 gee horizontal and 1 gee vertical. Experimental subjects with BMI < 20, having a "gravitational BMI" < 28 but the same "metabolic BMI".
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  . Experiments with rotating tube beds suggest 30 RPM (!) adaptation for head movements   . Experiments with rotating tube beds suggest 30 RPM ( ! ) adaptation for head movements

Gee Plus

Adapting to a High RPM Environment


The Experiment

A 9 meter radius, rotating long-duration space habitat simulation on Earth, simulating 1.4 gees at 10 RPM. 1.4 gees is the vector sum of 1 gee horizontal and 1 gee vertical. Experimental subjects with BMI < 20, having a "gravitational BMI" < 28 but the same "metabolic BMI".

Postulates

  • 1 Humans evolved to run, hence may be optimized for > 1 gee

    • see work by Joan Vernikos, NASA Ames (retired)
    • zero gee causes rapid "aging"
  • 2 The human vestibular system can adapt to high RPMS
    • Experiments with rotating rooms show 6 RPM adaptation in 3 days, 10 RPM in 5 days
    • Experiments with rotating tube beds suggest 30 RPM ( ! ) adaptation for head movements
    • Athletes undergo much faster head rotations

Goals

  • Test the Vernikos theory: do healthy humans do better in > 1 gee environments?

  • Learn about long term vestibular adaption, and the transition from rotation to non-rotation
    • frequent transitions through the hub to 1 gee and 0 RPM
  • Select astronauts for vestibular tolerance for rotating habitats in microgravity
  • Make low BMI people into heros

Math

a = 9.81 \times gee ~=~ \omega^2 R ~=~ { \Large \left( { 2 \pi } \over T \right) }^2 R ~=~ 4 \pi^2 { \Large { R \over T^2 } } ~~~ T in seconds

gee \times T^2 \approx 4 R ~~~~~ T ~=~ 60 / RPM

R ~=~ { \Large \left( 30 \over RPM \right)}^2 gee

GeePlus (last edited 2017-12-01 18:21:08 by KeithLofstrom)