ⓘ History of energy ..

Growth of wind power in the United States

The growth of wind power in the United States has been enhanced by a production tax credit PTC, which pays 2.3¢/kWh for the first 10 years. Development has been off and on again due to the expiration and late renewal of the PTC. It expired at the end of 2013, only to be restored in December 2014. In 2015 it was renewed but is phased out over a five-year period. One of the goals set by the Department of Energy is to increase the number of states which have over 1.000 MW of wind power to 15 by 2018. By the end of 2015 there were 17. Another goal was to increase the number of states with at l ...

History of electric power transmission

Electric power transmission, the tools and means of moving electricity far from where it is generated, date back to the late 19th century. They include the movement of electricity in bulk and the delivery of electricity to individual customers. In the beginning, the two terms were used interchangeably.

History of energy

The word energy derives from Greek ἐνέργεια, which appears for the first time in the work Nicomachean Ethics of 4th century BCE. The concept of energy emerged from the idea of vis viva living force, which Leibniz defined as the product of the mass of an object and its velocity squared; he believed that total vis viva was conserved. To account for slowing due to friction, Leibniz claimed that heat consisted of the random motion of the constituent parts of matter - a view shared by Isaac Newton, although it would be more than a century until this was generally accepted. Emilie marquise du Ch ...

History of wind power

Wind power has been used as long as humans have put sails into the wind. For more than two millennia wind-powered machines have ground grain and pumped water. Wind power was widely available and not confined to the banks of fast-flowing streams, or later, requiring sources of fuel. Wind-powered pumps drained the polders of the Netherlands, and in arid regions such as the American mid-west or the Australian outback, wind pumps provided water for livestock and steam engines. With the development of electric power, wind power found new applications in lighting buildings remote from centrally- ...

Shock and Awe: The Story of Electricity

Shock and Awe: The Story of Electricity is a British television series outlining aspects of the history of electricity. The series was a co-production between the Open University and the BBC and aired from 6 to 20 October 2011 on BBC Four. The programs were presented by Jim Al-Khalili.

Timeline of alcohol fuel

Ethanol, an alcohol fuel, is an important fuel for the operation of internal combustion engines that are used in cars, trucks, and other kinds of machinery. Ethanol has been used for lamp oil and cooking, along with plant and animal oils. Small alcohol stoves also called "spirit lamps" were commonly used by travelers in the 17th century to warm food and themselves. In 2008, Bill Gates sells most Pacific shares held by Cascade Investment for a loss of $38.9 million. In 1979, President Jimmy Carters administration creates federal incentives for ethanol production. Federal and state subsidies ...

Timeline of solar cells

In the 19th century, it was observed that the sunlight striking certain materials generates detectable electric current - the photoelectric effect. This discovery has laid the foundation of solar cells. Solar cells have gone on to be used in many applications. They have historically been used in situations where electrical power from the grid was unavailable.

Free and no ads
no need to download or install

Pino - logical board game which is based on tactics and strategy. In general this is a remix of chess, checkers and corners. The game develops imagination, concentration, teaches how to solve tasks, plan their own actions and of course to think logically. It does not matter how much pieces you have, the main thing is how they are placement!

online intellectual game →