Glass
What is glass? Who invented glass? ... These are all questions I ask myself whenever reflected light from the sun catches my eye, or when the barbecue’s cooking outside and eager to get to the food I run into the sliding glass door. What is this thing called glass? ... Once upon a time, in front of a campfire not to far from here, a friend of mine told me that glass was melted sand. I thought to myself, “I wonder if I would make a glass cup by melting this marshmallow. ... So I hypothesized that marshmallows are not sand, therefore they cannot make glass.