Feedback-control schemes for linear systems have been around since at least the 17 th century, regulating pressure and distance between millstones and then, famously, to control James Watt’s steam ...

Diabetes makes your body less able to use the food you eat, especially sugar. This results in a buildup of glucose (blood sugar) in your blood. Too much glucose in your blood can damage blood vessels ...

Sometimes people try to assert power over others and control situations. They may do this out of anxiety because they worry that things will go wrong if they do not maintain control. In other cases, ...