(& it's not Friday yet...)

At 10:56 AM 1/25/99 -0500, you wrote:
>If while driving you place a envelope or piece of paper on an empty
>passenger seat in your Vanagon, does it end up on the floor after a
>few miles? I've noticed this phenomena in my van.
>
>But why? I mean the seat is slanted such that these objects are
>actually defying gravity. And what is it about the vibrations of a
>vanagon that causes the movement to always be towards the front of the
>van? It's not braking/acceleration - this phenomena happens even if
>you maintain a constant speed.
>
>Enquiring minds want to know.
>
>dan

It's the equal-but-opposite reaction of the photons being spewed out by
your outrageously bright headlights (haven't you noticed it only happens at
night?).

Austin