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19884
A researcher cited in this article recommends that people at risk of heart attack should avoid exercising outdoors on highly polluted days. What an odd conclusion, on two counts: First, that avoidance, instead of elimination of the poison from the air we breathe, is the recommended course of action; and second, that only “at risk” […]
- Physics
Not flipping out
A single atom on a surface has favored magnetic orientations that could allow it to encode a data bit.
- Earth
Clearly Concerning
The toxicity of a chemical that leaches from a widely used plastic receives conflicting evaluations in two new reviews.
- Math
Beating the Bush for Patterns
Across some arid landscapes, sparse vegetation grows in fractal patterns that hold clues to its resilience.
