The focus of a playlist on the history of film shifts from the development of early film technology to techniques used by filmmakers like Georges Melies. Melies, a former magician, used dazzling illusions and tricky editing to create...

Your eye cells come in different shapes and serve different functions; rod-shaped cells see shapes and cone-shaped cells see color. Video 18 in the series of 47 teaches all about vision. Scholars see (no pun intended!) how vision works....

Two scientific concepts can be taught with this activity. First, the mixing of primary colors is demonstrated. As the color wheel spins, red, yellow, and blue are no longer visible; secondary colors orange, purple, and green appear in...

Bring a little magic into the classroom. Fill a cup with water, place a plate underneath it, and watch a coin disappear. This is a great way to kick off a discussion involving the behavior of light and the concepts of reflection and...