Lock and key| How it works?

Lets try to understand this simple lock and key working science.
Not every lock can be opened with any key. lets find out why and how it actually works.
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[@seisukeota273]

Your video is highest quality. Highest. I appriciate very much. Thank you.

[@Rotiya_]

Thank you for explaining this.. Great video..

[@venkatfaraday]

Excellent ❤️❤️❤️

[@Engineer_27]

Great work👍🏻

[@raj180380]

Awesome video.

[@deepak5297]

Really a great video 👍

[@deepakmaveli2289]

❤