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The world's largest collection of formulas and graphics about more than 300,000 mathematical functions for the mathematics and science communities.

coordinates science activities to facilitate research into the global water cycle and interactions between the land and the atmosphere

This sites features mathematical images and animations made by Jos Leys.

Explore this site and find over 800 images of fungi online as an introduction to our compact mycological encyclopedia, The Fifth Kingdom. These online images illustrate…

Hummingbirds: The best site about attracting and studying hummingbirds, including feeders, banding, and student projects.

Pre-order SPECS, AR glasses and smart glasses that bring computing into the world around you for work, learning, play, and hands-free experiences.

This website is dedicated to a mathematical question: the thrackle problem. It was posed by John Conway in the late sixties and has still not been solved.

Complete, up-to-date, mineral database containing 4,714 mineral species descriptions and comprehensive picture library of images. These data are linked to mineral…