SCIENCE April 2011 saw the worst day of U.S. tornadoes since 1974, and a new analysis points to fires in Central America as part of the cause. (National Geographic News) Create your own “perfect storm” of a tornado using our Forces of Nature interactive. Teachers, scroll down for a short list of key resources in our Teachers’ Toolkit. DISCUSSION IDEAS Read through the Nat Geo … Continue reading Where There’s Smoke, There’s . . . Tornadoes?
GEOGRAPHY AWARENESS WEEK! WORLD In the view of America’s spy services, the next potential threat from Russia may come from within U.S. borders. High-tech “monitor stations” would hone Glonass, the Russian version of the global positioning system—and, some fear, improve surveillance on the U.S. and the precision of Russian weaponry. (New York Times) Use our resources to better understand GPS. This video from U.S. Air … Continue reading Russian Version of GPS Stirs Spy Fears in U.S.
SCIENCE Key details about a large meteor’s fiery passage over Chelyabinsk, Russia, were inadvertently captured by satellites originally tasked to study Earth’s weather, scientists say. These environmental satellites could help researchers study potentially dangerous near-Earth objects, or NEOs. (National Geographic News) Use our resources to better understand meteors and weather satellites. (No, this video—of the Chelyabinsk meteorite being recovered from Lake Chebarkul—has no sound.) Discussion … Continue reading A Screaming Comes Across the Sky