Degrees of freedom (mechanics) pose, but at any point, you can move it only by a forward motion and a steering angle. So it has two control DOFs and three representational DOFs; i.e. it is non-holonomic. A fixed-wing aircraft, with 3–4 control DOFs (forward motion, roll, pitch, and to a limited extent, yaw) in a 3-D space, is also non-holonomic, as it cannot move directly up/down or left/right. A summary of formulas and methods for computing the degrees-of-freedom in mechanical systems has been given by Pennestri, Cavacece, and Vita. In electrical engineering "degrees of freedom" is often used to describe the number of directions
Six Degrees of Separation (play) Six Degrees of Separation (play) Six Degrees of Separation is a play written by American playwright John Guare that premiered in 1990. The play was nominated for the Pulitzer Prize for Drama and was nominated for the Tony Award for Best Play. The play explores the existential premise that everyone in the world is connected to everyone else in the world by a chain of no more than six acquaintances, thus, "six degrees of separation". A young black man named Paul shows up at the home of art dealer Flan Kittredge and his wife Louisa, known simply as "Ouisa", who