Auditory processing disorder (also known as central auditory processing disorder or CAPD) is a condition that makes it hard for kids to recognize subtle differences between sounds in words. It affects their ability to process what other people are saying.
Gallium is a solid metal at room temperature, but it melts in your hands. 00:09. When gallium is in its liquid state, if feels like cold melted solder in your hands. 00:33. Melting gallium onto aluminum makes the aluminum brittle enough to break with your fingers.
wikiHow to Melt Brass. Brass has a relatively low melting point compared to iron, steel, or gold, but it still requires a special furnace. Many beginning metalworking hobbyists start out with aluminum, which is easier to melt, but brass is often the next step.