Prevent Cavities With The Help Of This AI Toothbrush This toothbrush can track your habits and tell you where to brush next. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Light seconds, light years, light centuries: How to measure extreme distances Is Quantum Tunneling Faster than Light? The Race To See The Black Hole At The Center Of Our Galaxy Air Quality: A Tale of Three Cities 20 Lost Inventions Why Do Women’s Hips Sway When They Walk?