When was the last time you were in your attic? If you live in an older house, chances are it’s lined with that pink fluffy insulation that kind of looks like cotton candy…but don’t be fooled, because it is definitely not candy. In fact, it’s totally made of glass! Yes, glass, extremely thin glass threads that have been woven and spun into puffy insulation. The first uses for fiberglass, though, were purely decorative. In the 1800s, fiberglass was used as components of theatre and opera costumes because it could be made to look similar to silk. It was also found in the homes of the upper class as decorative detail on goblets and vases.
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