Introduction: Use Your Knuckles to See If a Month Has 31 Days!

About: I'm an environmentally conscious experimenter who loves to bring people together, build things, and when possible...blow things up! See us on YouTube too! https://youtube.com/WildmanTech

I could never remember that poem about how many days in a month, so I came up with the "Knuckle Method." Check it out!

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