It’s all around us. The secret is knowing what to look for…
Depending upon where you live in the United States, you may or may not be visited by an earthquake sometime soon. The areas of greatest concern lie along major fault lines (as in California and Alaska), but New Madrid, Missouri was known for hosting a major dish-buster in 1811-1812. (See also Plate Tectonics.)
Usually, it watches us. Now, we are watching it. The Upper Atmosphere Research Satellite (UARS) is expected to fall out of the sky and break into pieces as it enters Earth’s atmosphere sometime this weekend. The 6.5 ton, large-as-a-bus ozone research platform was launched in 1991 by NASA.
If the kids are bored some afternoon, and the question of map projections comes up (just sayin’), dig around for a piece of citrus (navel oranges do well), draw a likeness of the earth on the surface, then have the kids peel it in one piece. It’s the perfect primer for showing how maps work. For more infotoons, click here. (From Kids Discover Geography)
Austrian monk and avid Gardener Gregor Mendel is credited for discovering why tall plants (in his case, pea) don’t always produce tall offspring, nor do smaller plants. (From Kids Discover Cells.) Click for a larger image…
Here’s a fun little video I made. It’s time-lapse of a project I’m working on for a production entitled Diversity Circus. It’s an illustration of a trick using a broom, where–if you keep your elbows bent–no one will be able to push you off your spot. Lots of physics going on here.
I don’t recall how many times I changed the color of the broom handle, but it’s pretty obvious I wasn’t pleased with the first few. Enjoy!
Unlike humans who can travel and adapt to new environments, animals do not always have that luxury. The loss of sea ice to a polar bear can be devastating. You could liken the situation to an alligator trying to survive in the mountains of Colorado.
Dinosaurs came in all shapes and sizes, but Troodon (TROE-odon, based on a Greek word meaning “wounding teeth”) was apparently a bit of runner. Fossil evidence of its long legs and retractable second-toe claws give every indication that a high rate of speed was possible for this theropod. The image below is from Howard Temperley’s In the Days of Dinosaurs. On your mark…
Electricity is a very useful modern-day invention, but it needs to be handled with care. The infotoon below points out a few safety tips for kids and adults. (Text © Kids Discover Electricity)
A front is the area between air masses that have different levels of humidity and temperature. Cold air can move in and slide under warmer air, which makes it rise and condense, causing rain. The same thing can happen when warm air rides over the top of colder air.