The Moving Droplet (QuickTime, 1.1 MB) Real-time side view of water droplets placed by pipette on a heated brass surface (TR = 460 °C) machined into a ratchet-like (sawtooth) geometry (s = 1.5 mm, d = 0.3 mm), demonstrating the immediate acceleration of the droplets. A coin (diameter 2.4 cm) is included as length scale reference. Credit: Mike Taormina Slow Motion (QuickTime, 696 kb) High-speed v