Uncategorized
-
19465
As a decaf drinker, I found myself shouting, “What about caffeine”?” as I read your article. How can any report not, at least, mention its involvement or lack thereof? Greg TulloRaleigh, N.C. Researcher Pertti Happonen suspects that caffeine was responsible for the effects seen in his study, but since Finns don’t drink much decaf, he […]
- Health & Medicine
Coffee’s curious heart effects
Very high or low daily consumption of coffee appears to pose far more of a heart risk than drinking moderately.
- 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.
-
The tree of life, with tangled roots
Two ancient, rudimentary organisms merged to create the first complex cell, new data suggest.
-
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.
-
-
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.
-
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.
