Moving objects have momentum. Newton's First Law of Motion says that unless an outside force acts on an object, the object will continue to move at its present speed and direction. Automobiles consis …
Moving objects have momentum. Newton's First Law of Motion says that unless an outside force acts on an object, the object will continue to move at its present speed and direction. Automobiles consis …
A passenger jet has crashed. Flames shoot into the air. Dozens of people are trapped inside. How can firefighters rescue anyone in a raging inferno like that? It takes skilled professionals with speci …
You're cruising along at 140 mph, enjoying the incredible view of endless blue sky and sea from the cockpit of your lean, mean flying machine. Suddenly you hear the voice of the carrier's flight contr …
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Imagine you're skiing the deep snow of a mountain pass when you hear a low rumble. The snow beneath you suddenly gives way. In a terrifying instant you realize you've been caught in an avalanche. A ro …
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We often see the negative side of explosives on the news--images of twisted metal on damaged buildings or debris and rubble in a war zone. But explosives also help us construct tunnels, mine undergrou …
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