Ever had water slosh over the rim when you’re carrying a full cup, or watched your drink spill in a moving car? Chinese scientists have designed a cup that practically refuses to spill, even after being shaken 5,000 times. On Nov. 14, a research team from the Chinese Academy of Sciences unveiled a 3D-printed cup engineered to suppress liquid motion in scientific journal Science Advances. In one experiment, 30 cups were stacked into a four-tier “champagne tower” and mounted on the front of an SUV

The sloshing effect occurs when liquid in a moving tanker shifts violently, causing instability and making it harder to control the vehicle. This is due to Newton's First Law (inertia)—the liquid resists changes in motion and continues moving even when the tanker slows down or turns. Other applications of this technology are: 1. Fuel Tanks in Aircraft & Rockets – Prevents fuel shifting, ensuring balance. 2. Water Storage Tanks – Reduces wave formation inside large containers. 3. Ship Ballast Tan