Processing Math: 33%
To print higher-resolution math symbols, click the
Hi-Res Fonts for Printing button on the jsMath control panel.
No jsMath TeX fonts found -- using image fonts instead.
These may be slow and might not print well.
Use the jsMath control panel to get additional information.
jsMath Control PanelHide this Message

jsMath
Differences between revisions 10 and 13 (spanning 3 versions)
⇤ ← Revision 10 as of 2017-12-01 18:14:00 →
Size: 1508
Editor: KeithLofstrom
Comment:
← Revision 13 as of 2017-12-01 18:16:11 → ⇥
Size: 1580
Editor: KeithLofstrom
Comment:
Deletions are marked like this. Additions are marked like this.
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 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 '''''rotonaut'' heros'''

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

  • (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 rotonaut heros

Math

a=981gee = 2R = T22R = 42RT2   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)