A Day Without Automatic Control6
نویسنده
چکیده
First, what does automatic control do? Cruise control in the car keeps the speed constant even when we go up a slope or face a head wind. Automatic control keeps the value of a variable constant (here the speed, but also temperature, pressure, distance and so on in other applications) under a variety of operating conditions, automatically. Amazingly, in the human body automatic control systems are abundant and include regulation of body temperature, of white cell concentration in the blood, of the heart pumping rate, to mention but a few.
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