Скачать или смотреть Impact of hot molten tin on cold water (2500x slowed down)

The video shows what happens when a small droplet of hot soldering tin is dropped in a bath of water at room temperature. Below a critical tin temperature of approximately 330 degrees C, the droplet keeps its shape and slices through the water surrounded by a water vapor film. At 330 degrees C the droplet is seen to destabilize upon entering the bath and subsequently explodes and solidifies. Well above 330 degrees C the droplet violently explodes and shatters in to fine pieces. Such metal explosions are very relevant in any industry where hot metals are processed, as they pose a serious safety risk. Similar explosions are also thought to play an important role in geological structure formation where hot lava mixes with water. However, even for a single metal drop the precise mechanism and conditions for explosion are poorly understood. High-speed imaging may give some clues.