ELECTRONIC	h   t   t   p   c o l o n   s l a s h   s l a s h   w   w   w dot s c i e n c o f a s t dot c o m   s l a s h   a h e a d	h   t   t   p   c o l o n   s l a s h   s l a s h   w   w   w dot s c i e n c o f a s t dot c o m   s l a s h   a h e a d	1