Uncategorized
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Letters to the editor
Wet Earth Erin Wayman’s article “Faint young sun” (SN: 5/4/13, p. 30), about how the early Earth stayed warm enough for liquid water, made me wonder about the effect of the temperature of the planet itself. A hotter core, thinner crust, more volcanism — wouldn’t those factors in addition to atmospheric influences affect surface temperature? […]
- Animals
Frog long thought extinct rediscovered in Israel
Hula painted frog turns out to be the only surviving member of an extinct genus.
- Health & Medicine
Flu spreads via airborne droplets
Hand washing goes only so far in retarding flu transmission.
- Humans
Dietary changes accompanied human evolution
Hominids moved toward eating grasses and away from tree leaves, according to chemical analyses of fossil tooth enamel.
- Archaeology
Italians taught French wine-making
Archaeology suggests Etruscans brought the grape to Gaul.
- Humans
Couples who meet online have fine marriages
Relationship satisfaction for Internet daters is similar to that of people who find potential partners in more traditional ways.
- Life
Genes weakly linked to education level
A search of more than 2 million DNA locations in more than 125,000 people finds a weak, and perhaps dubious, association with schooling.
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- Animals
Two books explore the weirdest life on Earth
Zombie Birds, Astronaut Fish and Other Weird Animals by Becky Crew and Weird Life by David Toomey.
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