Someone, as a joke, asked me if a drinking straw has one hole or two. I said one, like my digestive system, one hole all the way through.
Today I realized that test tubes are not tubes as one end is closed off, like a skinny beaker or bin.
Good Luck
Submitted July 06, 2023 at 12:18AM by centstwo https://ift.tt/8VPy0r6