Uncategorized
- Health & Medicine
Tungsten-alloy shrapnel might cause cancer
Wounds caused by shrapnel comprising tungsten alloyed with nickel and cobalt cause cancer in rats, raising questions about the wisdom of using tungsten in munitions.
- Animals
Picky-eater termites choose good vibes
Good vibrations may have a lot to do with which pieces of wood a termite attacks.
- Math
New largest prime discovered
Computers have discovered a new largest prime number with a whopping 7,816,230 digits.
- Astronomy
Puzzling radio blasts
Astronomers are stumped by powerful radio waves emanating from the center of our galaxy.
-
- 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.
-
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/
-
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.
- Health & Medicine
Anoint Them with Oil: Cheap-and-easy treatment cuts infection rates in premature infants
Massaging premature babies with sunflower-seed oil can cut bloodborne infection rates.
-
19527
Regarding the therapeutic effects of sunflower-seed oil on infants, has any research been done as to the health benefits of the oil in any other age group? Yael LevyNew York, N.Y. Research to date has focused on newborns, says researcher Gary L. Darmstadt of Johns Hopkins University in Baltimore. However, a few studies have suggested […]
- Astronomy
Weighing In on a Star: A stellar size limit
A new study suggests that no star in our galaxy can weigh more than 150 times the mass of the sun.
