I can tell you what day of the week you were born on (without looking it up)

This week I thought I'd learn the "doomsday" algorithm which allows you to tell what day of the week any date will fall on. Turns out it's not too difficult!

The @Numberphile video I learned this from: https://youtu.be/z2x3SSBVGJU

My name is Mike Boyd and I make videos documenting my process of learning stuff really fast. Subscribe for more upcoming videos and feel free to tell me what you'd like me to learn next in the comments.
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Camera Work: Kim Boyd