![\"Google](\"https:\/\/www.europesays.com\/uk\/wp-content\/uploads\/2025\/04\/Google-Campus-logo.jpg\"\/ "\\"Google"){kind=logo}
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Ryan Haines \/ Android Authority<\/p>\n
TL;DR<\/p>\n
When Google\u2019s trying to come up with a theme for its latest Doodle<\/a>, it\u2019s not like the company is hurting for options. Today for example, April 14, is simultaneously National Pecan Day, National Gardening Day, Cambodian New Year, and a whole lot more. One of today\u2019s celebrations is special for Google in particular because it represents one of the company\u2019s big computational research projects, and in honor of it Google\u2019s got a new animated Doodle.<\/p>\n We\u2019re talking about World Quantum Day<\/a>, and much like Pi Day last month, this one occurs when it does because of a measurement \u2014 in this case, Plank\u2019s constant, which can be expressed as 4.14<\/strong>\u00d710\u221215 eV\u00b7s. That fundamental building block of quantum mechanics gives rise to the systems powering some of Google\u2019s most experimental computers<\/a>, to say nothing of, you know, existence as we know it.<\/p>\n Quantum mechanics is tricky for even clever folk to understand, but for today\u2019s Doodle, Google is attempting to illustrate one of its core concepts with what\u2019s hopefully a familiar demonstration. You may know about an optical illusion called a \u201cthaumatrope\u201d even if you don\u2019t recognize that word \u2014 it\u2019s one of those discs illustrated with maybe a cage on one side and a canary on the other, and when you spin the disc quickly enough, persistence of vision creates the illusion of a caged bird. Here, we get disks that each contain part of a letter in \u201cGOOGLE\u201d on each side:<\/p>\n What does that have to do with quantum physics? Much as the spinning disc attempts to merge those two images into one, qubits in a quantum computer can exist as a superposition of two states simultaneously. It\u2019s just one qubit, but quantum mechanics allows it to effectively exist as two things at once. The computations that sort of flexibility permits are exactly what make quantum computing as powerful (and, arguably, scary) as it has the potential to be.<\/p>\n Of course, none of this does much to help communicate how we\u2019re supposed to use those spinning discs to solve problems while they\u2019re still spinning, but one Doodle at a time, right?<\/p>\n![\"google](\"https:\/\/www.europesays.com\/uk\/wp-content\/uploads\/2025\/04\/google-doodle-quantim-day.gif\"\/ "\\"google")
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