1 The cost of living in Austin is 4.2 % greater than the national average. 2  Each cost of living index is based on a national average of 100. 3  If the amount is below 100, it is lower than the national average.4  If the amount is above 100, it is higher than the national average. Colorado Springs, CO is the least expensive city for gas at $1.62 per gallon. 2  Coffee. 3  The price of coffee in Austin, TX is $3.88. 4  The price of coffee in Austin is 15.7% lower than the national average.
Plexiglas is an all-acrylic material, usually associated with a polymeric, plastic material that is extremely durable, and has excellent weathering properties, and is very resistant to ultraviolet radiation from sunlight and the adverse effects of weathering.
Air, glass, most plastics, and rubber are insulators, for example. And then there are some materials called semiconductors, that seemed to be good conductors sometimes but much less so other times. Silicon and germanium are two such materials. The flow of charge is called electrical current.