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0xDEADBEEF
0xDEADBEEF is offline
#8
Sep22-11, 02:27 PM
P: 824
Another factor that makes glass blowing possible, the low thermal conductivity, which is important so you can selectively melt parts of the glassware. Finally glass has amazing properties: it is transparent, very hard and chemically extremely stable, making it preferable over other materials that might work -- like tar.