Remember those weird floating “precog” psychics in the movie Minority Report? They could foresee crimes before they even happened, allowing law enforcement to prevent them from ever becoming a reality. While that kind of sci-fi foreknowledge will almost certainly never exist, scientists are working on an eerily similar system that uses cameras and artificial intelligence — a system that they hope will be able to “see” crimes before they even occur.
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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