Volume 102 | Number 1 | January-February 2014
A review of Love and Math: The Heart of Hidden Reality, by Edward Frenkel
A review of An Astronaut's Guide to Life on Earth: What Going into Space Taught Me about Ingenuity, Determination, and Being Prepared for Anything, by Chris Hadfield
A review of The Scientific Sherlock Holmes: Cracking the Case with Science and Forensics, by James O’Brien, and Mastermind: How to Think Like Sherlock Holmes, by Maria Konnikova
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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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