Cup of Coffee Predicts Likelihood of Rain

Andrew Brady Photo

Spotted this interesting little post on PetaPixel. I really want to know if KP already knew this.

Backpacker Magazine writes:
“If the bubbles amass in the center [of the mug], you’re in a high-pressure system, which is making the coffee’s surface convex (higher in the middle). Since bubbles are mostly air, they migrate to the highest point. It’s going to be a beautiful day. If the bubbles form a ring around the sides of the mug, you’re in a low-pressure system, making the surface concave. Rain is likely. Note: It has to be strong, brewed coffee to have enough oil to work, and the mug must have straight sides.”

(via Backpacker Magazine via Instructables via Lifehacker via PetaPixel)

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