hard. "" will have an interactive spinning wheel and a fidget spinner which can be toggled via the switch. For the spinning wheel, a dropdown menu can change the number of numbers on the wheel: from 2 to 20. Whereas for the fidget spinner, users have to mimic a rotating motion in order for the spinner to spin. "" and "" will provide interactive timing methods; the stopwatch counting up and the timer counting down. Both tools are shown for each search term. Variants such as "set a timer for 10 minutes" can be used. "" or "terni lapilli" will show a playable game of tic-tac-toe. Users can select to play against the browser at different levels – "easy", "medium" or "hard" (called "impossible") – or against a friend. "" will show a tip calculator that can help users to tip someone. "" will show an embedded version of Google Translate tool in the search results, and in advance of Thanksgiving 2020, a turkey language was added to the selection of languages to which translations could be made. An example translation provided by sources for "how's it going" results in "gobble'gobble gobble gobble". All results are "Poultry Verified". "" will sound out what a dog will make. The word "dog" can be replaced with other animals in the search query. Google birthday surprise spinner Searching for "" will result in a wheel that spins to one of a selection of playable Google Doodles, tools (see above) and games. Whichever is randomly selected may be opened, or the wheel may be spun again. It was added in celebration of Google's 19th birthday. Calculator In late 2011 Google added a graphical calculator to search results, using natural language processing to determine that search results might be mathematical in nature. Woven into this feature are several, not entirely academic, results which might be considered Easter eggs. A Google web search for: "" shows the additional result "1 baker's dozen = 13". "" will give the additional result of "once in a blue moon = 1.16699016 × 10−8 hertz". "the answer to [the ultimate question of] life the universe and everything" provides the answer "42" as a result in reference to the Douglas Adams novel series, "The Hitchhiker's Guide to the Galaxy". It is believed to be the first Google Easter egg, predating the calculator in which it is now revealed. "the number of