Uncategorized
- Anthropology
Humanity’s Strange Face
New fossil finds in a Romanian cave fuel controversy over whether different, closely related species interbred on the evolutionary path that led to people.
- Math
Extra Time, Math, and the SAT
Extra time on the math portion of the SAT helps the most able students the most.
- Humans
Letters from the May 15, 2004, issue of Science News
Drug benefits There are added benefits to methotrexate and etanercept for rheumatoid arthritis patients, such as myself (“Two arthritis drugs work best in tandem,” SN: 3/13/04, p. 174: Two arthritis drugs work best in tandem). After a recent major flare-up, my rheumatologist put me on that therapy. Many people don’t realize that along with inflammation […]
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From the May 12, 1934, issue
William M. Welch and public health, a thymus-gland extract for speeding up growth, and mass-three hydrogen.
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Chem Demos
They may not be as dramatic as the real thing, but online video and descriptions of lecture demonstrations involving combustion and other chemical and physical effects still fascinate. The Chemistry Learning Center at the University of Illinois offers tantalizing glimpses of methanol combustion, electrolysis of water, hydrogen ignition, the effect of liquid nitrogen on a […]
- Agriculture
Rethinking Refuges? Drifting pollen may bring earlier pest resistance to bioengineered crops
Pollen wafting from bioengineered corn to traditional varieties may be undermining the fight to keep pests from evolving resistance to pesticides.
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This article on the spread of Bt pollen ended with the question, “Is this a big deal or a small effect?” The fact that this phenomenon has gone missing from bioengineering papers for 20 years makes one wonder what else hasn’t appeared. Bioengineers saying “we know what we’re doing” should now be humbled. The article […]
- Astronomy
Back to the Beginning: Hubble’s infrared camera goes the distance
Using the Hubble Space Telescope, researchers have identified 26 galaxies that may be the youngest and most distant known.
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Expanding the Code: Engineered bacteria are genetic rebels
Researchers have created a bacterium that can incorporate artificial amino acids into their proteins.
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Toddlers’ Supersize Mistakes: At times, children play with the impossible
Toddlers will sometimes try to climb into a toy car or otherwise treat small objects as if they were large ones, possibly because their brains occasionally fail to integrate visual information about object size with object identity.
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19418
I can pretty easily tell what was going through the kiddo’s mind while trying “in vain to scoot down a miniature slide.” 1. “Slides are fun. Why not pretend to slide on a toy slide to get the feeling you get from the real one?” 2. “Wow, I’m big now. I’ll prove it.” So, perhaps […]
- Physics
Holey Water: Punctured fluid stays riddled
Extreme vibrations and high concentrations of tiny particles, such as cornstarch, in water can create holes in the liquid.
