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In electromagnetism, Ørsted's law, also spelled Oersted's law, is the physical law stating that an electric current induces a magnetic field. [ 2 ] This was discovered on 21 April 1820 by Danish physicist Hans Christian Ørsted (1777–1851), [ 3 ] [ 4 ] when he noticed that the needle of a compass next to a wire carrying current turned so ...
The National Geographic GeoBee (called the National Geographic Bee from 2001 to 2018, [1] also referred to as the Nat Geo Bee) was an annual geography contest sponsored by the National Geographic Society. The bee, held annually from 1989 to 2019, was open to students in the fourth through eighth grades in participating schools from the United ...
Hans Christian Ørsted (/ ˈ ɜːr s t ɛ d /; [5] Danish: [ˈhænˀs ˈkʰʁestjæn ˈɶɐ̯steð] ⓘ; anglicized as Oersted; [note 1] 14 August 1777 – 9 March 1851) was a Danish physicist and chemist who discovered that electric currents create magnetic fields. This phenomenon is known as Oersted's law. He also discovered aluminium, a ...
Wildlife observation is the practice of noting the occurrence or abundance of animal species at a specific location and time, [1] either for research purposes or recreation. Common examples of this type of activity are bird watching and whale watching.
The 4th National Geographic Bee was held in Washington, D.C., on May 21, 1992, sponsored by the National Geographic Society. The final competition was moderated by Jeopardy! host Alex Trebek. [1] The winner was Lawson Fite of Shumway Middle School in Vancouver, Washington, who won a $25,000 college scholarship. [2]
Biden's political remark did not sit well with conservatives, who slammed him for using the opportunity to attack instead of merely honoring Carter's legacy -- and for having the audacity to speak ...
Kite experiment (1700s): Benjamin Franklin beginning in 1747 describes experiments in letters to Peter Collinson demonstrating electrical principles which were published in a book called Experiments and Observations on Electricity. Voltaic pile (1796): Alessandro Volta constructs a new source of electricity, the electrical battery.
Other unsettled questions around turf and priorities. A drama-free confirmation process could also delay answers on exactly who has Trump's ear. Trade and tariffs are key examples, with Trump ...
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