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Document Type

Research

Keywords

Turtles; gravity; centrifugation; ear; growth; labyrinthectomy

Abstract

A 1-G space-based centrifuge will be necessary before controlled, bio-medical weightlessness experiments can be performed. Some argue that centrifuges of prohibitive dimensions are necessary. Labyrinthectomized, hatchling, Red-Eared Turtles (Pseudemys scripta elegans) which had grown to a length of 45 mm at 5 G's (200 rpm 10 cm radius) displayed the same greater shell height (21.7 ± 0.4 vs, 20.0 ± 0.3 mm at 1 G) that was observed at 5 G's with nonlabyrinthectomized, centrifuged turtles. If other effects of centrifugation can also be attributed to artificial gravity rather than rotation, a space-based centrifuge radius as short as 10 cm (1 G at 100 rpm) is suggested.

Publication Date

January 1972

Journal Title

Proceedings of the Iowa Academy of Science

Volume

78

Issue

3-4

First Page

65

Last Page

66

Copyright

© Copyright 1972 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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