Science Experiment: disappears in warm water in a metal spoon

Metal spoon, placed in warm water 30 degrees, what happens? : Decomposition of the metal spoon in warm water, and constantly break down, until it disappears. . Strange, but this is not terrorist attacks, the secret is all metal materials: gallium, gallium at room temperature, like a tin if you want it in her hand, which soon melted, and became a small bright silver beads. Original gallium melting pointis very low, only 29.8℃. With such characteristics of the metal, really special.