looking for an illustrator tutorial on this effect

[mashinhead]

I want to have the effect of the lines radiating outward like in the image below, i see it everywhere but can find a tutorial cos i don't know how to but into words. I sure it's easy but if anyone knows can you help me out. thanks

 

[jerryrock]

It is a sunburst pattern:

http://www.slicktutorials.com/illustrator-sunburst

 

[mashinhead]

It is a sunburst pattern:

http://www.slicktutorials.com/illustrator-sunburst

thank you