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- Major twister hits Oklahoma: Its speed, which largely determines the damage it causes, is still unknown
- Why a tornado forms: Tornadoes start with a thunderstorm. But they also require other ingredients, such as instability.
- A mind for math: A part of the brain associated with making memories may also predict success in learning math
OPTIMAL PERFORMERS
View larger image | Study participants who were shown intact or distorted patches of leaf images (top panel), and were asked to determine whether the patches came from the same leaf or different leaves, performed nearly as well as an ideal Bayesian observer (gray line in graphs).
Credit: leaf images: A.D. Ing et al/Journal of Vision 2010
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