Big Brain Cross Product

Big Brain Cross Product
physics-memes, vectors-memes, cross-product-memes, right-hand-rule-memes, math-memes | ScienceHumor.io

The right-hand rule for vector cross products: where your fingers do the math your brain gave up on. You curl your fingers from vector a to vector b, and your thumb points in the direction of a × b. It's literally the only time in your academic career where giving a thumbs up is actually solving differential equations.

Physics professors love teaching this because it makes grown adults sit in lecture halls making hand gestures like they're casting spells. Which, honestly, isn't far from the truth when you're trying to figure out magnetic field directions at 2 AM before the exam.

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