6,745 results
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19304
I was dismayed to see you publish an unsubstantiated and highly misleading claim that welfare “reform” is not harming children. The study dealt with the atypical welfare mothers able to find sustainable employment. For them, I don’t doubt that having enough money rather than too little would be an improvement. Unmentioned are the many unskilled […]
- Humans
From the December 16 & 23, 1933, issues
STRENGTH OF CRATES TESTED BY TOSSING An important phase of the work of the timber mechanics department of the U.S. Forest Products Laboratory at Madison, Wis., has been to perfect the designing and nailing of these boxes so that their durability is greater. Chemically treated nails and reinforcement by diagonal braces have given more rigidity […]
- Humans
From the December 16 & 23, 1933, issues
STRENGTH OF CRATES TESTED BY TOSSING An important phase of the work of the timber mechanics department of the U.S. Forest Products Laboratory at Madison, Wis., has been to perfect the designing and nailing of these boxes so that their durability is greater. Chemically treated nails and reinforcement by diagonal braces have given more rigidity […]
- Earth
North vs. Northwest: Lewis and Clark diaries provide directional clue
Observations from the Lewis and Clark expedition may offer insight into Earth's magnetic field.
- Health & Medicine
Born to Heal
The controversial strategy of screening embryos to produce donors for siblings raises hopes and presents new ethical dilemmas.
- Tech
Body Builders
By growing stem cells on three- dimensional polymer scaffolds, tissue engineers hope to mimic natural tissue development and ultimately produce replacement body parts.
- Astronomy
Black Hole Life Preserver: Don’t get sucked in without one
By temporarily counteracting a black hole's tremendous tidal forces, a proposed black hole life preserver would slightly lengthen the life and shorten the agony of anyone exploring one of these gravitational beasts.
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19310
Like most environmental journalism, the article describes the problem well but not the solution. It would be useful if information about native landscaping were included in this article as an alternative to non-native species. Frank HasslerChampaign, Ill. Your interesting piece on invasive plants touched upon, but otherwise ignored, mycoherbicides for control of noxious weeds. Mycoherbicides, […]
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Moms and pups sniff out immune genes
Genes involved in the immune system also create individualized body odors that allow parents and offspring to recognize each other.
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19206
Your article has a picture of a “deer stone.” On it are engraved designs of reindeer that bear an astonishing resemblance to a tattoo borne by the 2,400-year old mummy discovered in 1993 in central Asia. Was this noticed by the researchers? Michelle BlanchardOlympia, Wash. Absolutely. William Fitzhugh, an expedition leader, says he was struck […]
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The Naked Truth? Lice hint at a recent origin of clothing
A study of genetic differences among human lice hints at the origin of clothing.
- Chemistry
Drug smugglers leave cellular tracks
Imaging reveals where some experimental nanoscale capsules ferry drugs when they enter cells.
