Depending where you define the edges, our solar system has a diameter of at least 10 billion kilometers (and arguably more). How can the human mind begin to process such an expanse? We can’t compare ...
NASA has released an interactive online tool that enables students to simultaneously visualize and manipulate three linked representations of a distance-rate-time problem. The side-by-side tool format ...
HIKING -- Hikers who tackle entire lengths of long-range trails such as the Pacific Crest Trail are called "thru hikers." Follow them on the Thru Hiking facebook page. Rich Landers joined The ...
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