1. Perley Elementary School pays respect to SBPD fallen officer Corporal Nick Polizzotto


    from Judi Lykowski / Added

    7 Plays / / 0 Comments

    My assignment for the day was to tell the story of how Perley Elementary students and staff in South Bend, Indiana were paying their respects to fallen officer Corporal Nick S. Polizzotto, a nine…

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    • Outgassing Plume Observed on Dry Ice Comet


      from Chuck Bueter / Added

      74 Plays / / 0 Comments

      A jet of vapor is expelled in a well-defined stream from a dry ice comet. The plume simulates a feature that may be found on real comets where fissures in the surface expose ice to the sun's warmth.…

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