Tornadoes
Tornadoes are perhaps one of the most terrifying manifestations of weather. Luckily for the rest of the world, they occur most frequently in the United States. A typical tornado season may see as many as 700 tornadoes. They are unpredictable, violent, and…
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Engineering
Smoke Detectors
How does a smoke detector 'know' when there is a fire? Smoke detectors use one of two different methods to do…
Biology
How Did Dogs Evolve?
While the status of the dog as humankind's best and oldest friend remains unchallenged, debate rages about…
Biology
Splitting Hairs
Pluck a single strand of hair from your head and you've lost what scientists call the hair shaft. The shaft is…
Physics
When Do We Encounter Ionizing Radiation In Our Daily Lives?
Everyone who lives on this planet is constantly exposed to naturally occurring ionizing radiation (background…