to examine objects we use every day.
A nail clipper looks incredibly simple, but it relies on basic mechanical principles to transform the pressure from your thumb into enough force to cut through a nail.
The next time you use one, take a closer look at its handle, lever, cutting edges, and that small round opening.
You might never look at your nail clipper quite the same way again.
The Bottom Line
The small round hole on a nail clipper can have several purposes depending on the design. It may
