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  • A new way of thinking about motion, movement, and the concept of time

    Eadweard Muybridge’s ‘Animal Locomotion’ was the first scientific study to use photography. Now, more than 130 years later, Muybridge’s work is seen as both an innovation in photography and the science of movement.
    Plate 163, with key words “Male, Jumping; standing broad jump
    Plate 163, with key words “Male, Jumping; standing broad jump (shoes),” model is Percy C. Madeira (1862-1942). The black and white grids used to track movement are visible on the top two panels. (Image: University of Pennsylvania Archives)

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  • Exposure to air pollution worsens Alzheimer’s disease
    Emissions from a power plant.

    Image: Pencho Chukov via Getty Images

    Exposure to air pollution worsens Alzheimer’s disease

    New research from Penn Medicine finds living in areas with high concentration of air pollution is associated with increased buildup of amyloid and tau proteins in the brains of Alzheimer’s patients, accelerating cognitive decline.

    Sep 9, 2025