Posts Tagged ‘coffeebubbles’

Use Your Coffee Cup to Predict Whether Rain Will Ruin Your Outdoor Shoot

Did you know that your morning cup of coffee can help you predict rain? It’s a trick used by backpackers that can come in handy you’re shooting outdoors without Internet: pour a cup of coffee and carefully watch the bubbles. Backpacker Magazine writes,

If the bubbles amass in the center, 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.

To make new bubbles, simply give your coffee a good stir.

(via Backpacker Magazine via Instructables via Lifehacker)


Image credit: drip by subsetsum