Related Documents. 1  A/68/878âS/2014/339 14 May 2014. Report of the Secretary-General on children and armed conflict. 2  A/67/845-S/2013/245 15 May 2013. Report of the Secretary-General. 3  S/AC.51/2011/3 03 May 2011. Conclusions on children and armed conflict in Afghanistan. 4  S/2011/55 11 Feb 2011.
Hot-wire foam cutter. simple styrofoam cutter. A hot-wire foam cutter is a tool used to cut polystyrene foam and similar materials. The device consists of a thin, taut metal wire, often made of nichrome or stainless steel, or a thicker wire preformed into a desired shape, which is heated via electrical resistance to approximately 200Â°C.
A cup of acetone is enough to dissolve an entire bean bag worth of styrofoam beads! Styrofoam is made up of polystyrene foam. When the polystyrene dissolves in the acetone, the air in the foam is released, causing it to look like you're dissolving this massive quantity of material into a small volume of liquid.You can see a less-dramatic version of the same effect by dissolving other polystyrene items in acetone.issolving Styrofoam or another polystyrene product in acetone is a spectacular demonstration of the solubility of this plastic in an organic solvent, plus it illustrates just how much air is in the Styrofoam.