Go to Google’s homepage. Type in the words “Do a barrel roll.” Click Enter
No such notions, says Google, which sent us this explanation:
“Today’s fun query, ‘do a barrel roll,’ was created by a Google software engineer with the primary goal of entertaining users — while showcasing the power of CSS3, a presentation feature of modern browsers. The “do a barrel roll” query, which causes the search page to spin, will remain in place for a while.”
“z or r twice” produces the same effect;
(By the way, you may not see the effect in older browsers. Newer ones support HTML5, the newest version of the code that makes online content work.)
Source: abcnews.go.com