You can’t really call them corks when they aren’t made of cork. Note that box on the right, which says “Corks” on it actually contains real corks, made from the bark of the cork oak (which should be called Quercus corkus but is actually Quercus suber). These brown stoppers are made of gum rubber and are good for all sorts of stoppering needs. These are in a drawer in a small cabinet that has a fairly wide variety of things in it. As you can see, a few of them have holes cut through them. Dad used them in his home lab and I’ve found a few uses for them myself, over the years.
Tagged With: Rubber
Cathy was going through some boxes of small objects this evening and among other things, she found a bunch of super balls. I’ve always loved super balls and they are a real fixture of my childhood. What I didn’t know is that I was among the first generation to enjoy these highly bouncy balls. On August 25, 1965, Norman Stingley filed a patent for what he called a “Highly Resilient Polybutadiene Ball” (patent number 3,241,834, issued March 22, 1966). The Super Ball® was sold by Wham-O® and was an instant success. I know my brothers and I got many hours of enjoyment from them. They are made of a synthetic rubber called Zectron® that is primarily polybutadiene molded under high pressure and heat. All I knew as a kid was they really could bounce.