Curated OER
Physics4 kids.com: Direct Current and Alternating Current
Illustration showing the difference between a direct current and an alternating current.
Curated OER
Wikipedia: Natl Historic Landmarks in Ny: Adams Power Plant Transformer House
Transformer house of the first large-scale, alternating current electric generating plant in the world; tapped power of Niagara Falls via a 7,500 foot (2,286 m) tail-race tunnel.
Curated OER
Ar Kive: Red Panda (Ailurus Fulgens)
Due to similarities with both the bear and raccoon family, the classification of the red panda (Ailurus fulgens) has caused continued controversy since it was first described in 1825. Today it is placed with the raccoons, but in its own...