Volume 91 | Number 4 | July-August 2003
Enrico Bombieri reviews two new books that try to explain what makes the Riemann hypothesis the greatest
A review of Magick, Mayhem, and Mavericks: The Spirited History of Physical Chemistry, by Cathy Cobb
A review of Science in the Service of Human Rights, by Richard Pierre Claude
A review of Napoleon's Buttons: How 17 Molecules Changed History, by Penny Le Couteur and Jay Burreson.
In Freedom Evolves, Daniel C. Dennett integrates his views on consciousness and free will with his other great scientific interest, evolutionary theory
Principles of Animal Locomotion integrates physics and engineering with biology to describe the diverse ways animals get around
For purposes of map shading, four colors suffice. But try proving that without a computer
Simon Conway Morris reviews Andrew Parker’s In the Blink of an Eye, sifting the useful and thought-provoking from the misunderstood and simply silly
Total Records : 15
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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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