Uncategorized
- Physics
Marrying matter and light
Physicists have created circuit components that, in a manner analogous to atoms, meld with light, opening new ways to study fundamental light-matter interactions.
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The tree of life, with tangled roots
Two ancient, rudimentary organisms merged to create the first complex cell, new data suggest.
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Schizophrenia takes fatal turn in China
Suicides among people with schizophrenia are a major public-health concern in China.
- Anthropology
Ancient head case
A 1.8-million-year-old Homo erectus skullcap came from a 1-year-old child whose brain grew at a rate more like that of chimpanzees than of people.
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19464
I was pleased to read that one of the most mathematically pretty sphere-stacking arrangements (the lovely 24-cell) occurs in four dimensions. The nice thing about four dimensions is that, by letting time be one dimension and using a good three-dimensional computer-graphics package, the arrangement can be viewed on a computer. Dan RyanPhiladelphia, Pa.
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19463
Surely, you mean ale. Beer, in this country at least, is a hopped drink. Evidence of ale brewing is what Robin Birley found at Vindolanda. Beer didn’t appear in England until the late Middle Ages. Ron WilcoxBath, England
- Archaeology
Original Microbrews
Pots, vats, and other artifacts unearthed on three continents are giving archaeologists new clues about ancient cultures' beer-brewing practices.
- Math
Euler’s Sums of Powers
Investigating sums of powers has a long history, going back to Fermat and Euler.
- Humans
From the September 22, 1934, issue
Giant ocean liner ready for launch, synthetic vitamin C produces unexpected cures, and systematic problem solving in chimpanzees.
- Humans
Quick Flicks
The BrainPOP Web site boasts more than 200 animated movies with accompanying comics and activities that answer students’ questions about science, math, health, and technology. A host of characters explains tough concepts in an interesting and humorous way. Unfortunately, visitors to the site can view only two movies per day for free. A subscription to […]
- Earth
Deep Squeeze: Experiments point to methane in Earth’s mantle
Although today's fossil fuel reserves reside in Earth's crust, a new study suggests that hydrocarbon fuel might also nestle deep in the mantle, at depths of 100 kilometers or more.
