Before we start going deeper into this section, you need to know this: you are already an inventor, so you have the power to build all the sensors you want in the world! However, as Spidey's uncle Ben said, with great power comes great responsibility; as an inventor you always follow a process or an approach to solving problems. Remember the notebook you maintain, that's the one!
Write down the following three questions in your notebook:
Why?
What?
How?
Every time you see a problem, ask yourself these questions:
Why am I doing this?-Find out the answer to this by constantly observing and identifying the problem statements around you. Asking WHY helps you define the problem statement and gives you the reason to stick to the problem statement even when you are in self-doubt. For example, my observation is that the temperature in my city is increasing. Why is it increasing?-It is increasing because of pollution.
What are you going to do about the problem you found out by asking...