Predicting hydraulic fracture propagation more accurately

Researchers at EPFL have developed a new model to calculate hydraulic fracture propagation. Acclaimed for its accuracy by experts, the model better predicts fracture geometry and the energy cost of hydraulic fracturing—a ...

Daddy daycare: Why some songbirds care for the wrong kids

Interspecific feeding—when an adult of one species feeds the young of another—is rare among songbirds, and scientists could only speculate on why it occurs, but now, Penn State researchers have new insight into this behavior.

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