Discs Under Bottle Caps
You’ve probably observed that a small plastic disc is hidden beneath the cap of a plastic drink bottle at some point. While you may not think much of it (and why should you? ), there is an interesting reason for its presence. That tiny plastic disc helps in carbonation retention in some way.
Discs Under Bottle Caps
We’re not here to explain the science; we’re here to give you the facts. We have effervescent soda instead of flat soda thanks to those little discs. Nobody wants to live in a world where sodas are flat. Gross.
Blue Part Of Eraser
Some erasers may appear to be different colors to appeal to children. The blue component of the eraser has even been rumored to release ink in schools. That isn’t the case, unfortunately. The blue section, on the other hand, is designed to be used on thicker, stronger paper than common loose-leaf or notebook paper.
Blue Part Of Eraser
Artists, for example, use paper that is more friction sensitive. As a result, they must use a specific type of eraser, as opposed to the pink erasers that the rest of us use.
