These tiny barnacles can cost ships millions of dollars a year if they aren't removed. The job looks satisfying & terrifying at the same time!

Name: These tiny barnacles can cost ships millions of dollars a year if they aren't removed. The job looks satisfying & terrifying at the same time!
Channel: HOW THINGS WORK
Description: These tiny barnacles can cost ships millions of dollars a year if they aren't removed. The job looks satisfying & terrifying at the same time!