Sandpaper Only Works If It Is Rubbing Against Something

Feld Thoughts

Shark skin (placoid scales) has also been used as an abrasive and the rough scales of the living fossil, Coelacanth are used for the same purpose by the natives of Comoros. Glass paper was manufactured in London in 1833 by John Oakey, whose company had developed new adhesive techniques and processes, enabling mass production. I recently heard the line “sandpaper only works if it is rubbing against something” and loved it.