I don't understand why people say that a 3.5 inch floppy is not really 3.5 inches. When I measure my floppy disks to the nearest 1/32 of an inch, the dimentions are 3 1/2 in. by 3 5/8 inches. Thus one side is truly 3.5 inches. Some prometric websites say that instead of 3.5 inches it is really 90 mm, however my disks measure 89 mm x 93 mm. It is the opening to the floppy drive bay that is 90 mm wide (the disk has to be slightly smaller or else it won't slide into the drive)! Prometric people need to get the facts straight if they are to be credible to nonmetric people.
Likewise the diagonal measure of computer monitors and TV screens are still stated exclusively in inches in the USA, even though the dot pitch is stated in mm. Since the dot metric is stated in metric, I wonder why the diagonal measure is not also stated in metric. I guess it is because people don't pay much attention to the dot pitch except when comparing specs, but the diagonal meausure is something they visualize when they see advertising. Trade Name! It's just a trade name. Just like a half-inch pipe is not really a half inch nor is a 3.5 inch floppy really 3.5 inches. I have an idea. Why don't you take the pot back to the shop you bought it from or call them on the phone, explain what you did and ask them how a 2 L pot can be called a gallon pot! Then report here. I'd be surprised to read clerk's answer. BTW. when you measured it as 2.25 L, were you filling it to the rim with something? If you were, that is wrong. Flower pots are never filled full. There has to be some space for debris and watering. That may in fact be meant to be a 2 L pot.
