[freebeard]

There four of us in the back of a station wagon, of various ages. The radio antenna snagged a butterfly and folded it's wings neatly to either side.

We screamed and cried to stop and let the butterfly loose. Our father let us know in no uncertain terms that the stopping and starting of the mass of the vehicle and it's contents would involve more energy than 10 or 100 butterflies. And shut up.


The peak of my aerodynamic experience was a 1/10th scale R/C car. Someone else did the drivetrain and I did the paint and body. I left the front wheelwells as uncut clear plastic and cut the whole back out, basically a rectangle 90% of the frontal area.

On the back straight the downforce would suck dust out of the pavement and leave a trail hanging in the air.