Otherwise it would be almost impossible to see anything on the road in such a mixture of fog and exhausts.

As games blend our real and virtual environments, should there be concern that some people will be less able to distinguish between the two?

So they all feel the energy of mixing.

In this case, now you mix them together, relative to the ideal solution where there are no interactions, now they want to be together.

He identified an enhanced vertical mixing of warm and cool air in the atmosphere in the wake of the turbine rotors.