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  • Artificial versus real grass: How the difference changes the game

    In conversation with Penn Today, mechanical engineer, tennis player, and soccer fan Paulo Arratia discusses the material differences between natural grass and synthetic turf.

    3 min. read

    Aerial shot of a football pitches.
    Aerial view of Palmeiras’ Academia de Futebol 2 Training Camp. The 45,000 square-meter site features five pitches, including an official FIFA-standard grass field, a synthetic turf pitch, and the famous "terrón" (dirt field) where the U13 categories play to develop creativity and improvisational ball skills on the challenging terrain.
    (Image: Alexandre Schneider / Stringer)

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  • Tracing an ancient blue across the ancient world
    Examples of cross sections of Egyptian blue samples.

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    Tracing an ancient blue across the ancient world

    Penn researchers Vanessa and Alexis North are studying one of the largest collections of Egyptian blue objects ever found in the ancient Near East, shedding new light on how the world’s first synthetic pigment may have traveled far beyond Egypt.

    Aug 10, 2026

    A new role for dental providers? Rethinking where vaccines are given
    Dental provider talking to a patient.

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    A new role for dental providers? Rethinking where vaccines are given

    Vaccinations have traditionally been administered in primary care settings or pharmacies. However, for about a decade, some states have authorized dentists to administer vaccines, and many others did so during the COVID-19 pandemic. The effectiveness of this approach has led some countries and states to expand or consider expanding the role of dental providers in delivering routine vaccines, including those against COVID-19 and the human papillomavirus (HPV), and in providing vaccine education.

    Jul 28, 2026

    Penn student develops a way for computer chips to run more efficiently
    Nhlanhla Mavuso looking at an electronic board in the Moore Building.

    Nhlanhla Mavuso of Fluid Silicon at work in the Moore Building.

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    Penn student develops a way for computer chips to run more efficiently

    Fluid Silicon, a platform from President’s Sustainability Prize winner Nhlanhla Mavuso, allows computer chips to continuously monitor their health and self-tune as their characteristics change. The technology has the potential to reduce energy usage in data centers and improve reliability in mission-critical applications.

    May 5, 2026