[free] "collision"

Hard Dark Old School Underground Hip Hop Instrumental Rap Beat (D-Low Beats) 

Collision of free particles moving by inertia 

In addition to this freestyle mission, We're heading for the new collision, We try to see the it upon all vision, And dare to take a fresh position, To free your mind is our ambition, An end of all your superstition, Cut like a knife, with great prec 

Collision of a free particle with a particle in a chemical element