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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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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 […]
By Science News -
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.
By Bruce Bower - 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.
By Peter Weiss - Earth
Underwater Pavement: Asphalt deposits cover parts of Gulf of Mexico
Explorations of the seafloor in the southern Gulf of Mexico have revealed lavalike flows of asphalt that are home to a thriving ecosystem of microbes, mussels, tubeworms, and crabs.
By Sid Perkins - Health & Medicine
Bad Break: Homocysteine may weaken bones
Elderly people with elevated concentrations of the amino acid homocysteine in their blood are more likely to break bones than are people with low amounts.
By Nathan Seppa - Paleontology
Fossil confirms that early arthropods molted
A 505-million-year-old fossil provides hard proof of that ancient arthropods shed their exoskeletons during growth, just as their modern relatives do.
By Sid Perkins - Tech
Diagnostic gadget mixes and matches all in one
Researchers have fabricated a miniature diagnostic lab that can detect disease-linked genes in a small sample of whole blood.
- Humans
Plan B ruling is prescription for controversy
Contravening a recent recommendation from one of its advisory panels, the Food and Drug Administration denied an application to make the emergency contraceptive known as Plan B available without a doctor's prescription.
By Ben Harder - Health & Medicine
Nanoparticles could mark spots for surgery
A new molecule studded with magnetically active ions may soon help surgeons extract, with minimal cutting, lymph nodes likely to harbor cancer.
By Ben Harder - Earth
Boats puff up outdoor carbon monoxide risk
Large congregations of motorboats can produce enough carbon monoxide gas in open air to be hazardous to people.
By Ben Harder - Humans
Historical chemistry library wows scholars
A new library in Philadelphia is home to one of the world's most extensive and valuable collections of historical chemistry texts.