Type This Into Google for a Valentine's Day Surprise

Romantic math geeks, your moment has arrived. 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

Twitter user @Huckberry tipped us off to the fact that typing in the algebraic equation plots several different functions on a graph that forms the shape of a heart.

The series includes various square roots, absolute values and cosine functions — mathematical functions often taught in high school math courses. The plotted lines change direction due to the absolute value function flipping the sign of the x-coordinate, creating a mirror image across the y-axis.

The “cos(300x)” part of the formula was also written to make the line go quickly up and down as it traces out the interior of the heart. This creates the colored-in effect. Meanwhile, if you change the “300″ number in the equation to “500,” the color fills up the heart. That part of the formula is related to frequency.

Although the equation wasn’t written by Google, this is not the first time users have been able to type in certain keywords into search for a seasonal surprise. For example, type “Do a barrel roll” and the word “askew” into Google. Check out some more fun search tricks in the gallery below — and let us know in the comments if we’ve missed any.

Source:- Mashable

Gmail Goes Social With Google Buzz

Google introduced a social networking tool called Google Buzz Tuesday that allows sharing of status updates, images, and videos via a new Gmail tab called Google Buzz. The Google Buzz features will also be available on Android based phones as well as the iPhone (via a Web-based application) allowing for real-time updates to your Google Buzz feed that can show up on a new version of Google's mobile maps.

Google says the new Google Buzz tab will begin showing up on about 1 percent of Gmail user accounts starting today. Google says the rest of Gmail users will be able to see a new Google Buzz tab in their accounts within a week.
  
Five Core Features

Google hopes that instead of conversing on Facebook, Twitter, or MySpace, you'll instead turn to Google Buzz for sharing status updates, photos, and videos. How will the search giant convince you to make Google Buzz your social network of choice?
  
1. Blends With Gmail

The main way of accessing Google Buzz will be through Gmail. Below your inbox, there will be a tab for Buzz, allowing you to read status updates, photos, and video. The 40 people you converse with the most in Gmail and Gchat are automatically added as friends. Buzz updates also appear in your inbox if someone comments on your updates or comments, or someone directs a Buzz to your attention by using the familiar "@" symbol. 

2. "Page Rank" for Status Updates

Google brought up that familiar criticism of social networks, that no one cares if you ate a bagel or stubbed your toe. To compensate for noise, Google Buzz lets you like and dislike status updates, and learn over time whether to show or collapse status updates from your friends. It also looks for conversations outside your direct group of followers and adds them to your feed as recommendations. 

3. Media Gets Pulled In

Photos from Flickr and Picasa and video from YouTube appear as thumbnails in Google Buzz. Click a YouTube thumbnail, and the video will expand to play inline. Click on a photo, and it'll expand to fill most of the browser window, with the rest of the gallery in a narrow strip along the bottom of the screen.
If you post a link in Buzz, you'll automatically be able to append images and the headline from that Web page. Finally, you can pull in tweets from Twitter (but no Facebook updates) into Buzz. Unfortunately, you can't send your Buzz updates out to Twitter or other social networks. 

4. Mobile Features

Google Buzz will be available as a mobile Web app, letting you dictate status updates by voice and geotag your posts. When looking on Google Mobile Maps, Buzz updates appear directly on the map, so you can read location-based updates. You can also look for any recent Buzz updates posted near your current location. 

5. Private and Public

With each update you send, you'll have a choice of making it private or public. Private updates can go to all of your Buzz followers, or just a select group. Public updates are posted on your Google Profile page and are immediately indexed for Google Search.

source:-http://www.pcworld.com/article/188897/gmail_goes_social_with_google_buzz.html/