News
- Earth
Just a Tad Is Too Much: Less is worse for tadpoles exposed to chemicals
The herbicide atrazine is more likely to kill developing amphibians when it is highly diluted than when it's much more concentrated in aquatic environments.
- Physics
Grainy Geyser: Tall squirts reveal sand’s liquid ways
Dropping a steel ball into fine, loosely packed sand produces towering jets of grains.
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Clearing Up Blurry Vision: Scientists gaze toward causes of myopia
Scientists are beginning to unravel the genetic mechanism that causes nearsightedness.
- Archaeology
Mexican murals store magnetic data
Tiny magnetic particles in the pigments of some Mexican murals recorded the direction of Earth's magnetic field when the paint dried.
