Differences between revisions 11 and 12
 ⇤ ← Revision 11 as of 2017-12-01 18:15:02 → Size: 1556 Editor: KeithLofstrom Comment: ← Revision 12 as of 2017-12-01 18:15:24 → ⇥ Size: 1561 Editor: KeithLofstrom Comment: Deletions are marked like this. Additions are marked like this. Line 20: Line 20: *'''(1)''' Test the Vernikos theory: do healthy humans do '''better''' in > 1 gee environments? *'''(2)''' 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 *'''(3)''' Select astronauts for vestibular tolerance for rotating habitats in microgravity *'''(4)''' Make low BMI people into heros .'''(1)''' Test the Vernikos theory: do healthy humans do '''better''' in > 1 gee environments? .'''(2)''' Learn about long term vestibular adaption, and the transition from rotation to non-rotation  . test frequent transitions through the hub to 1 gee and 0 RPM .'''(3)''' Select astronauts for vestibular tolerance for rotating habitats in microgravity .'''(4)''' Make low BMI people into heros

# Gee Plus

## 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

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

• (2) Learn about long term vestibular adaption, and the transition from rotation to non-rotation

• test frequent transitions through the hub to 1 gee and 0 RPM
• (3) Select astronauts for vestibular tolerance for rotating habitats in microgravity

• (4) 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)