He wrote and published an important paper on mechanics.
For years he had been focusing on mechanics in the short game.
They worked on mechanics in the hallways of the school.
Instead, they said, the talk centered on timing and mechanics.
Johnson wrote a book on mechanics, and he knows what is wrong.
To a large degree, the result may hinge on mechanics.
He also published two other works on mechanics and machines.
To him, it's simple: players do not win on emotion, but mechanics.
We're trying to get him to relax, slow down a little bit and concentrate on mechanics.
While at the university he worked on mechanics and mathematical physics.