In the last 150 years, engineers have developed and mastered ways to stabilize dynamic systems, without lag or overshoot, using what's known as control theory.
Now, a team of University of Arizona researchers has shown that cells and organisms evolved complex biochemical circuits that follow the principles of control theory, millions of years before the first engineer put pencil to paper.
Consider your home air conditioner, for example.
Your air conditioner then blasts cold air into your home until the thermostat reaches 72.
This is an analog for what's called feedforward control - your thermostat sets a goal, gets as close to 72 degrees as fast as it can, and turns off when it meets the goal.
This is an analog for a feedback control, where small fluctuations away from the set temperature feedback onto the controller and cause the system to adjust.
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The legal issue of interfering devices is a frequently discussed topic, and in this article, we will try to focus on all the aspects worthy of attention.
Later, when the government began to realize that this might pose a threat to society, people decided that it would be better to restrict these types of devices for two reasons.
Firstly-it is difficult to tell people not to use these devices near the police station, and secondly-almost anyone can get one of these portable frequency blockers, even if he is a terrorist, it increases the chance of such an attack.
On the other hand, the same technology can protect public places from improvised explosive devices all over the world.But knowing this, we support the decisions of these governments, but we want to ask some very important questions.
Basically, the problem lies in the following points: How can we protect our privacy when we are not allowed to take the necessary measures to preserve it?
This means that the government should consider more factors and decide whether certain frequency limiters should be allowed.
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