What is the Definition & Meaning of Mixed Reality or MR? alvirmin Tutorials February 9, 2016 | 2 Lately, there is a term emerging called âMixed Realityâ or also known as MR in the virtual reality or simulation world. Mixed reality refers to the combination or merging of virtual environment together with real environment where both of them can co-exist together.
MAPP GAS. MAPP (methylacetylene-propadiene) is an all-pur pose industrial fuel having the high-flame temperature of acetylene but has the handling characteristics of propane. Being a liquid, MAPP is sold by the pound, rather than by the cubic foot, as with acetylene.
First it depends on the glass, such as flint glass melts much lower than quartz glass. But using MAPP gas instead of propane cylinder will also help. Range is from 500 to 1600 degrees F. But you also have to heat it slowly and uniformly, or else it will shatter.