Lester Pelton invented a type of free-jet water turbine called the Pelton Wheel or Pelton turbine. This turbine is used for hydroelectric power generation. It is one of the original green technologies, replacing coal or wood with the power of falling water. Lester Pelton and the Pelton Water Wheel Turbine Lester Pelton was born in 1829 in Vermillion, Ohio.

Beijing and Shanghai are arguably China's two most famous and most important cities. One is the center of government, the other the center of modern commerce. One is steeped in history, the other is a glittering tribute to modernity. You might imagine that the two fit together like yin and yang , complimenting each other, and maybe that's true…but they also hate each other.

Solar storms are the most fascinating and dangerous activities our star experiences. They lift off the Sun and send their fastest particles sleeting radiation across interplanetary space. Very strong ones affect Earth and the other planets within a matter of minutes or hours. These days, with a flotilla of spacecraft studying the Sun, we get very quick warnings of upcoming storms.

Margaret de Valois was a Queen of Navarre and France. She was also the main character of the famous novel Queen Margot by Alexander Dumas.

The American Bungalow is one of the most popular small homes ever built. It can take on many different shapes and styles, depending on where it is built and for whom it is built. The word bungalow is often used to mean any small 20th century home that uses space efficiently. Bungalows were built at a time of great population growth in the U.

The triarchic theory of intelligence proposes that there are three distinct types of intelligence: practical, distinct, and analytical. It was formulated by Robert J. Sternberg, a well-known psychologist whose research often focuses on human intelligence and creativity. The triarchic theory is comprised of three subtheories, each of which relates to a specific kind of intelligence: the contextual subtheory, which corresponds to practical intelligence, or the ability to successfully function in one's environment; the experiential subtheory, which corresponds to creative intelligence, or the ability to deal with novel situations or issues; and the componential subtheory, which corresponds to analytical intelligence, or the ability to solve problems.