Uncategorized
- Math
Winning at Tennis
The probability of winning a tennis set or match doesn't depend, in theory, on which player serves first.
- Humans
From the June 8, 1935, issue
Ancient, titanic beasts at a museum, a test of vision theory, and ethylene gas and ripening fruit.
- Ecosystems
Tallgrass Prairie
The Openlands Project played a key role in converting the former Joliet Arsenal in Illinois into the first national tallgrass prairie. This Web site traces the Midewin National Tallgrass Prairie’s history and provides a variety of classroom activities for students in grades 1 to 12. Lessons include plant investigations, predator and prey relationships, prairie climate, […]
- Earth
Farmers without Fungus: How to store peanuts to reduce toxins
African peanut farmers can more than halve their exposure to a class of harmful fungal toxins called aflatoxins by adopting several simple measures after harvest.
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19561
Your article made the minimization of aflatoxins in peanuts sound beneficial until the recommendation to treat the ground beneath the peanut pallets with insecticides. This will induce harm to the soil wildlife on which African farmers and villagers are dependent and to any nearby water sources. It will also add a toxic substance to the […]
- Materials Science
Micropower Heats Up: Propane fuel cell packs a lot of punch
Portable electronic devices such as laptops and MP3 players could soon run on miniature fuel cells that consume propane.
- Earth
Icy Heat: Satellites look at heat flow through Antarctica’s crust
Using satellite observations of Earth's magnetic field, scientists can estimate the amount of heat flowing upward through Earth's surface under kilometers-thick ice.
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19560
Your article refers to the Earth’s magnetic field only at very long wavelengths. In over 70 years’ exposure to science, I have never heard of our magnetic field having wavelengths. Please elaborate. Kenneth E. StoneCherryvale, Kan. Looking at Earth’s magnetic field at long wavelengths is analogous to looking at a picture in low resolution, says […]
- Health & Medicine
Back to Genetics: DNA variant may code for lumbar pain
An inheritable gene variation may increase susceptibility to lumbar-disk disease.
- Astronomy
Peering into a disrupted stellar nursery
A new infrared portrait of the Carina nebula star-forming region shows a clutch of baby stars tucked inside pillars of thick dust.
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Disorderly Conduct: U.S. survey finds high rates of mental illness
Nearly half of all adults in the United States develop at least one mental disorder at some time in their lives, although most cases aren't serious enough to require treatment.
- Animals
Sponge Moms: Dolphins learn tool use from their mothers
Dolphins that carry sponges on their beaks while looking for food may have learned the trick from their mothers instead of just inheriting a sponge-use gene.
