Article of the Day is a free service of TheFreeDictionary.com http://www.sedanweb.com en-us Farlex, Inc. Thu, 22 Apr 2021 05:00:00 GMT 360 http://www.sedanweb.com http://img.tfd.com/modules/thm_aod.png 120 60 Thu, 22 Apr 2021 05:00:00 GMT https://encyclopedia.thefreedictionary.com/Electrophysiology //encyclopedia.thefreedictionary.com/Electrophysiology#2021 Electrophysiology is the branch of physiology concerned with determining the basic mechanisms by which electric currents are generated within living organisms, particularly in the nervous system. The electrical properties of biological cells and tissues are studied using a number of different methods. Classical techniques involve placing electrodes into biological tissue, and even into individual cells. What are some electrophysiology projects that have been awarded the Nobel Prize? Discuss
]]> Wed, 21 Apr 2021 05:00:00 GMT https://encyclopedia.thefreedictionary.com/Airglow //encyclopedia.thefreedictionary.com/Airglow#2021 In Earth's upper atmosphere, ultraviolet light from the Sun ionizes atoms and dissociates molecules at heights between 40 and 200 miles (64 and 322 kilometers) above the planet's surface. When the fragments collide and recombine, some atoms and molecules are left with excess energy, which they release as light, known as airglow. Airglow hampers optical telescopic observations on Earth by reducing the apparent contrast between stars and space. What types of atoms are involved in the phenomenon?
]]> Tue, 20 Apr 2021 05:00:00 GMT https://encyclopedia.thefreedictionary.com/The+Narrative+of+Arthur+Gordon+Pym+of+Nantucket //encyclopedia.thefreedictionary.com/The+Narrative+of+Arthur+Gordon+Pym+of+Nantucket#2021 The only complete novel written by Edgar Allen Poe, The Narrative of Arthur Gordon Pym of Nantucket describes the fantastic adventures—and misadventures—of the eponymous character, who stows away on a whaling ship. Though the 1838 novel influenced writers such as Melville and Verne, Poe—who is best known for his short tales of the macabre—called the novel "a silly book." Contemporary reviews were likewise unfavorable, and readers disliked the book's abrupt ending, in which what happens?
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