Certain tools are built in to Google’s search mechanics to provide quick, reliable answers. For example, if you need to convert a measurement unit, you’ll receive a quick answer at the top of Google search.
To improve your search experience, utilize this list of features to help refine what you’re looking for. We’ve collected 10 quick Google tricks that you might’ve not known existed.
1. Boolean Search Parameters. To really master the art of Google search, you can follow certain terms and tricks. For instance, rather than simply asking Google a question in the search box, include specific items such as type of file or title name.
2. Public Data. Google has an entire directory of public data, which you can also access to look up trends. Type keywords such as "population" or "unemployment," followed by a state or county.
3. Easter Eggs. Google's developers have a sense of humor -- just type in "do a barrel roll" or "let it snow" to see for yourself. There are a number of other hidden easter eggs as well.
4. Tracking a Package. If you have the tracking number for a FedEx, UPS or USPS package, type it into the search box and Google will provide you with quick updates on your package's status.
5. Calculator. Need a quick answer to a math problem? Enter the calculation into the search box.
6. Unit Conversions. Wondering how many milliliters are in one cup? Google has a built-in converter for different units of measurement, like height, weight and volume. You can also do the same for currency conversions.
7. Sports Tracking. If you're on the go, but need a quick check on your favorite sports team, enter the team or league name into the search box.
8. Medication. Find brief summaries and descriptions for most generic and brand name prescription drugs in the U.S. by typing their names into the search box.
9. Flight Schedule. Whether you need to check the status on a U.S. flight or book a trip, there are a couple terms that can help you plan accordingly. Enter the name of the airline and the flight number to check its status. To see schedules to or from specific locations, type in "flights from" or "flights to" along with the city or airport.
10. Sunrise and Sunset. Wondering when to catch a sunrise or sunset? If you type "sunrise" or "sunset" followed by the name of the city, Google's built-in feature counts down to the next occurrence.
source http://mashable.com/2012/03/05/10-google-search-tricks-you-might-not-know