Article of the Day Article of the Day is a free service of TheFreeDictionary.com http://www.changxw.com en-us Farlex, Inc. Wed, 6 Nov 2019 05:00:00 GMT 360 Article of the Day http://www.changxw.com http://img.tfd.com/modules/thm_aod.png 120 60 Wed, 6 Nov 2019 05:00:00 GMT Singing Sand https://encyclopedia.thefreedictionary.com/Singing+sand //encyclopedia.thefreedictionary.com/Singing+sand#2019 Also known as sounding sand, singing sand is sand that emits musical, humming, whistling, or crunching sounds when disturbed. Although it has been studied extensively, the phenomenon is not completely understood. When it occurs near dunes, the sound accompanies a slumping or avalanching movement of the sand, usually triggered by wind or by someone walking near the crest. Different patches of sand are even said to "sing" at different frequencies. What are some locations where the sand sings? Discuss
]]>
Tue, 5 Nov 2019 05:00:00 GMT The Bunyip https://encyclopedia.thefreedictionary.com/Bunyip //encyclopedia.thefreedictionary.com/Bunyip#2019 The bunyip is a legendary monster said to inhabit swamps and lagoons of the Australian interior. Its name comes from a word meaning "evil-spirit" in Wemba-wemba, an Aboriginal language of southeast Australia. Descriptions of the bunyip vary widely. In most stories, it appears as a giant starfish-like creature, but it is also described in many accounts as having a dog-like face, dark fur, a horse-like tail, flippers, and walrus-like tusks. What phenomena could have given rise to the bunyip myth?
]]>
Mon, 4 Nov 2019 05:00:00 GMT Project MKULTRA https://encyclopedia.thefreedictionary.com/Project+MKULTRA //encyclopedia.thefreedictionary.com/Project+MKULTRA#2019 Project MKULTRA was the code name of a covert, illegal operation of the US Central Intelligence Agency that used US and Canadian citizens to research interrogation methods and behavior modification without their knowledge or consent. The full extent of the project is unknown, since the CIA ordered all MKULTRA files destroyed in 1973. The project, which lasted from the 1950s to the late 1960s, included the surreptitious administration of drugs such as LSD. What other experiments were conducted?
]]>
乐天堂