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Message: <blockquote data-quote="imhotep" data-source="post: 28173235" data-attributes="member: 562115">A very few of you may have heard about Freeman Dyson - The Professor without a PhD.  There are many original works associated with Freeman Dyson including the Dyson series. He worked along with Richard Feynman.J Robert Oppenheimer, then director of the Institute for Advanced Study in Princeton, New Jersey, offered Dyson a lifetime appointment at the Institute.A Brilliant theoretical physicist and mathematician whose far-fetched ideas for the future verged on the bizarre. He won several medals and prizes.Here's  video of him delivering a guest lecture at the age of 90... He passed away at the age of 96, on Feb 28, 2020.[MEDIA=youtube]JLT6omWrvIw[/MEDIA]He was attributed with being able to perform numerical calculations very swiftly.  It's said that one day where a number of top scientists and mathematicians got together - someone asked - "Whether an integer number exists, so that you could exactly double by moving its last digit to its front."For eg, 256 would satisfy this if 625 were its exact double—which it isn’t.Apparently, in just FIVE seconds Dyson responded, “Of course there is, but the smallest such number has 18 digits.”Given - Dyson's statement, is it possible to find this number?</blockquote>

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