Best Hidden Google Tricks

Today, I’m going to show you some funny and amazing tricks that you can do with Google.
[Most of these tricks use the very famous “I’m Feeling Lucky Button”]

New Update:

Google’s New Valentine’s Day Surprise

In the spirit of Valentine’s Day, go ahead and Type (or paste) this into Google search:

sqrt(cos(x))*cos(300x)+sqrt(abs(x))-0.7)*(4-x*x)^0.01, sqrt(6-x^2), -sqrt(6-x^2) from -4.5 to 4.5

Ya.., It is a nightmarish mathematical equation, But thankfully, the formula, if typed into the search facility, produces a baby blue love heart, Mashable revealed.

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Google barrel roll

A hidden feature in Google Search which gets activated when you search for this special term.
Actually "Do a Barrel Roll" has gone viral on the web as millions of Google search users are typing

Do a Barrel Roll

in Google search and seeing Google search results roll like a barell right in front of your eyes! Try for yourself, type "Do a Barrel Roll" in Google search box.

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Google Gravity

With this cool trick, you’re going to see Google logo and other stuffs on the Google homepage falling down to the bottom of the browser.
go to Google.com and type in Google

Gravity

Note: Only works when click I’m Feeling Lucky button.

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Play PacMan on Google

Celebrating PAC-MAN’s 30th birthday Google puts a special doodle on home page on 21 May. But it is still available on http://www.google.com/pacman

 
I’m sure most of you are already familiar with this trick but for the benefit of our other friends, I’m going to show you how you can play PacMan on Google (single or multiplayer mode).

• If you want to play PacMan on single mode, click the Insert Coin button beside Google Search but if you want to play on multiplayer mode, click the Insert Coin button twice.
• Multiplayer mode controls: Arrow keys and A,S,D,W keys

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Playable Google Doodle Honors 96th Birthday of  Les Paul

Google on June 9, 2011 Honored 96th Birthday of Musician Les Paul with a special playable Doodle. strings of a guitar that will play a tune as you strum them with your mouse.
Users can click the black "compose" button and record a 30-second track. Clicking the button again will display a link to share the song you've just created.

Playable version the Doodle doodle is still around at  google.com/logos/2011/lespaul

Google said it was inspired to include the record button because Paul, in addition to his guitar work, also "experimented in his garage with innovative recording techniques like multitracking and tape delay," Alexander Chen, a designer (and musician) with Google's Creative Lab, wrote in a blog post.
This was one of the best Google Doodle that i have seen and Enjoyed. What about you?

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Mentalplex

 
This one started life as an April Fool's joke, but is still around at google.com/mentalplex. Baffle your less Internet-savvy family and friends!

These are all fun built-in tricks you can amuse yourself with right now.
Check them out, and let us know in the comments if you have any other favorites.