There is an old saying " To see is too believe," and I do agree with that. If I have the chance to prove it by myself, I will remember those theories for long time.
Since I handle the chemical etching in our laboratory, I know how important to neutralize the acid and base. If I need to memorize the reaction function, I will not be able to make it.
After I have some hands-on experiences, I can use Leak Detector to check if there is a leak in my system.
When I see the setting, I remember that I used to make some soap bubble to check if there was gas running away in the kitchen.
Maybe the theory is not related to each other.
I also learn to be a very patient student when I need to wait for the process done.
Sometimes, I got the idea from several errors, and those trouble shooting steps will also be kept in my mind for long time, but most of times I need miracle in the problem solving process.
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