Your height varies throughout the day depending on the amount of fluid in your spinal disks.
An architectural term meaning leftover space, spandrel is used in science to describe evolutionary byproducts.
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This means that the water pumping in and out of them also provides them with nutrients and enables them to eliminate waste products. If you’ve ever wished you were just a little bit taller, try measuring your height in the morning. It might make all the difference.
“Spandrel” is a term from architecture. Imagine a dome that is held up by four arches, the way it’s done in cathedrals. When you do this you wind up with some leftover space between each arch. That’s a spandrel.