Differences between revisions 1 and 14 (spanning 13 versions)
 ⇤ ← Revision 1 as of 2017-12-01 18:08:50 → Size: 1489 Editor: KeithLofstrom Comment: ← Revision 14 as of 2017-12-01 18:16:59 → ⇥ Size: 1580 Editor: KeithLofstrom Comment: Deletions are marked like this. Additions are marked like this. Line 7: Line 7: 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". Line 11: Line 11: .1 Humans evolved to run, hence may be optimized for > 1 gee .'''(1)''' Humans evolved to run, hence may be optimized for > 1 gee Line 14: Line 14: .2 The human vestibular system can adapt to high RPMS .'''(2)''' The human vestibular system can adapt to high RPMS Line 16: Line 16: . Experiments with rotating tube beds suggest 30 RPM (!) adaptation for head movements . Experiments with rotating tube beds suggest 30 RPM ( ! ) adaptation for head movements Line 20: Line 20: . 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 .'''(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 '''''rotonauts''''' into '''heros''' Line 28: Line 28: $a = 9.81 \times gee = \omega^2 R = { \Large { { 2 \pi } \over T }^2 } R = 4 \pi^2 { \Large { R \over T^2 } } ~~~ T$ in seconds $a = 9.81 \times gee ~=~ \omega^2 R ~=~ { \Large \left( { 2 \pi } \over T \right) }^2 R ~=~ 4 \pi^2 { \Large { R \over T^2 } } ~~~ T$ in seconds Line 30: Line 30: $gee \times T^2 \approx 4 R ~~~~~ T = 60 / RPM$ $gee \times T^2 \approx 4 R ~~~~~ T ~=~ 60 / RPM$ Line 32: Line 32: $R = { \Large \left( 30 \over RPM \right)^2 } gee$ $R ~=~ { \Large \left( 30 \over RPM \right)}^2 gee$

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 rotonauts 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)