on request some tricks I use in Google

my favorite

The calculator

just enter your formula in google

7+7

but also be creative

60 km / speed of light

or

60000000 km / speed of light in days

3 meter in mile

it really is fun trying lots of things

searching

Everything in google's database about a certain site

site:wallvis.com

or search only a specific site for information

prostitute site:vatican.va

Who links to my website?

link: wallvis.com

if a word has multiple meaning use - to exclude certain areas

windows -microsoft