These are two archaic names for a device that, under human power, propels the operator of this machine forward at ten to twenty miles per hour. Most of us call it a bicycle. Automobile drivers have other names for it and its rider, but propriety will not permit them to be printed here.
Bicycles can be fun to ride, especially if the rider is suicidal.
Assuming this to be the case, here are a few tips that will help riders to ensure that death comes as quickly as possible. Ride on the left. This is the last place drivers would expect to look for you. Drivers don't watch their left side as carefully as their right. Also, anyone who has taken 8.01 can appreciate the difference between a large mass and a much smaller mass traveling toward each other, and a large mass overtaking a much smaller mass.