Knovation Site of the Day

Try Science: Save Your Skin

 The summer is half over. I hope you have been slathering on the sunscreen when venturing outside. If not, doing this experiment might convince you that using sun protection is valuable. The equipment necessary for this test is minimal, some apple rings, some string, and hanger, and, of course, a sunny day. The instructions are easy to follow, and your observation of the results will not take too much time. You’ll find out just how powerful the sun can be. There are some ideas on how to extend this experiment by using various variables.July 30

Explore and Learn: George Washington Crossing the Delaware

 The Metropolitan Museum of Art houses the famous Emanuel Leutze painting of George Washington Crossing the Delaware. Clicking on the additional images takes you deep into the painting. You can see the expressions on the boatmen’s faces, the treacherous ice in the river, a good look at every section of the boat, and even the horses in the background which are attempting to cross also. The lighting is worthy of study all by itself. Enlarge each image to examine each part carefully. July 29

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