Uncategorized
- Humans
From the March 9, 1935, issue
How early fish learned to swim, a long-distance record for short radio waves, and tidal effects inside Earth.
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Ospreys in the Classroom
The University of Minnesota’s Raptor Center offers a set of multidisciplinary lesson plans introducing students from grades four through eight to raptors. Topics range from predator-prey relationships and habitats to environmental sampling. The lessons focus mainly on learning about ospreys. Go to: http://www.cvm.umn.edu/depts/raptorcenter/education/lessonplans/
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Bacterial Nanny: Beewolf grows microbe for protecting young
A European wasp leaves a smear of bacteria near each of her eggs as protection against the perils of youth.
- Materials Science
Slick Surfaces: Pressure builds to make better motor oils
Motor oil's protection against the wear and tear of steel engine parts takes effect only at high pressures.
