The moment when cars enter a curve is called a “brush.” It is a crucial moment in the kinetic sculpture, when cars are most likely to tumble off track. In answer to this, the artist and his team constructed the curves in such a way that it touches the rims of the wheels, adding friction and subtly slowing the cars down.  Photo 8 of 10 in Chris Burden's Big City Dreams by Carren Jao

Chris Burden's Big City Dreams

8 of 10

The moment when cars enter a curve is called a “brush.” It is a crucial moment in the kinetic sculpture, when cars are most likely to tumble off track. In answer to this, the artist and his team constructed the curves in such a way that it touches the rims of the wheels, adding friction and subtly slowing the cars down.