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Contents
- Mystery Meteorite: The case for (and against) a rock from Mercury
- Hard Times for Theorists in a Post-Higgs World: The Large Hadron Collider’s big success leaves no clear avenue for new physics
- In the Eye of the Tiger: Global spread of Asian tiger mosquito could fuel outbreaks of tropical disease in temperate regions
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Contents
- Cool Jobs: Moved by life: Biologically inspired robots travel — naturally
- Infection time: Disease is more severe when it hits in the morning, at least in mice
- Explainer: Our bodies’ internal clocks: Biological clocks determine hunger, sleepiness and other daily rhythms
Web edition: January 27, 2012
Print edition: February 11, 2012; Vol.181 #3 (p. 4)
EFFECT OF WEIGHTLESSNESS — Astronaut John H. Glenn Jr.’s experience in weightlessness during his coming orbital flight will not be long enough to cause him any undue stress such as that suffered by Cosmonaut Titov, a U.S. Air Force expert reported. “Experiments by the Russians with animals and men as well as our own experiments indicate that man can pretty well tolerate, with little, if any discomfort, a period of four to five hours in a weightless or zero-g environment,” Col. John Paul Stapp, U.S. Air Force School of Aviation Medicine, Brooks Air Force Base, Texas, and internationally known authority on zero-g research, told SCIENCE SERVICE. Glenn’s scheduled three whirls around the earth will take about four and a half hours.
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