Mills' Mess "The pattern received its name from fellow jugglers at the 1976 International Juggling Convention in Los Angeles, California. Steve Mills did not know how to "teach" this pattern and while trying different methods of teaching this pattern with many proficient jugglers, they shouted 'this is a mess.'" Mills did not know this was being called "Mills Mess" around the world for several years. Mills Mess can be combined with chops, claws, or other juggling maneuvers or flourishes to create a pattern that is moderately more difficult than the traditional three-ball cascade. Though most commonly performed with balls, bean-bags or similar
All-pass filter system. For example, by proper choice of pole (and therefore zero), a pole of an unstable system that is in the right-hand plane can be canceled and reflected on the left-hand plane. The benefit to implementing all-pass filters with active components like operational amplifiers is that they do not require inductors, which are bulky and costly in integrated circuit designs. In other applications where inductors are readily available, all-pass filters can be implemented entirely without active components. There are a number of circuit topologies that can be used for this. The following are the most commonly used circuits. The lattice