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 scanning tunneling microscope (STM) is an instrument for imaging surfaces at the atomic level.Its development in 1981 earned its inventors, Gerd Binnig and Heinrich Rohrer (at IBM Zuerich), zÃ¼rich The Nobel prize In physics in. 1986he resolution of an image is limited by the radius of curvature of the scanning tip of the STM. Additionally, image artifacts can occur if the tip has two tips at the end rather than a single atom; this leads to âdouble-tip imaging,â a situation in which both tips contribute to the tunneling.