Volume 92 | Number 6 | November-December 2004
The subjects of the photographs in Bernd and Hilla Becher’s book Typologies are industrial artifacts: water towers, gas tanks, mine hoists, lime kilns, grain elevators, coal bunkers, blast furnaces
The 1979 crisis at Three Mile Island was a closer call than was realized at the time—half of the reactor's core melted
Deborah Bennett's Logic Made Easy serves as an excellent introduction to the subject
The Retreat of the Elephants, Mark Elvin's environmental history of China, is interesting, revealing and often fascinating—but hard to read, says Vaclav Smil
Beyond the Outer Shores tells the story of marine biologist Ed Ricketts and his pals John Steinbeck and Joseph Campbell
Fermi Remembered marks the centennial of the physicist's birth with letters and reminiscences
A new biography of Cyril Darlington provides a scholarly, powerful, devastating and subtle analysis of the man
Ocean Flowers is a book about a short period in botanical illustration, the use of cyanotype printing, and the intersection of that technique with the development of photography as a way of recording images of objects in nature
Total Records : 16
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ANIMATION: Hydrangea Colors: It’s All in the Soil
The Hydrangea macrophylla (big-leafed hydrangea) plant is the only known plant that can 'detect' the pH level in surrounding soil!
One of the world’s most popular ornamental flowers, it conceals a bouquet of biological and biochemical surprises. The iconic “snowball” shaped hydrangea blooms are a common staple of backyard gardens.
Hydrangea colors ultimately depend on the availability of aluminum ions(Al3+) within the soil.
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