Uncategorized
- Math
Fold-and-Cut Magic
One of the treats of holidays long past was an activity that involved folding, then cutting a sheet or strip of paper to reveal a lacy snowflake or a chain of identical spruce trees, connected at their sides so it looked like branches brushing up against each other. The result was invariably a delightful surprise. […]
- Earth
Outside-In: Clearing up how cloud droplets freeze
A fresh look at old experimental data suggests that water droplets in clouds freeze from the outside inward rather than from their core outward.
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19202
What is reported in this article is a new application of an old idea.
