Lots of you know that there are different materials in LEDs to allow them to emit the color you desire. For example Gallium is used in many blue LEDs and other electronic devices. I had never seen the property that Gallium has to weaken metals though. In the videos below Nerd Rage demonstrates how a small amount of Gallium can disrupt the strength of some metals and allow it to be manipulated as if it was wet cardboard. I am thinking that some safe crackers might have some chemistry experimentation in their future.
“Elemental gallium is not found in nature, but it is easily obtained by smelting. Very pure gallium metal has a brilliant silvery color and its solid metal fractures conchoidally like glass. Gallium metal expands by 3.1% when it solidifies, and therefore storage in either glass or metal containers is avoided, due to the possibility of container rupture with freezing. Gallium shares the higher-density liquid state with only a few materials like silicon, germanium, bismuth, antimony and water.
Gallium attacks most other metals by diffusing into their metal lattice. Gallium for example diffuses into the grain boundaries of Al/Zn alloys[1] or steel,[2] making them very brittle. Also, gallium metal easily alloys with many metals, and was used in small quantities as a plutonium-gallium alloy in the plutonium cores of the first and third nuclear bombs, to help stabilize the plutonium crystal structure.”