Wolfram Alpha is a computational knowledge engine which means that when you search a topic, you get exact answers instead of millions of websites to sift through. You can search for specific terms or you can put in an equation to solve for example.
Click here to find the results of searching for a 30 sided polyhedron.
Click here to find the results of C major 7th chord.
Click here to find the results of searching for an exact longitude and latitude.