Have you ever wondered how black lights, or mirrors work? This collection of articles will explain the workings of some of the most common inventions and innovations you come into contact with everyday.
How Tooth Whitening Works
In the past few years, tooth-whitening has exploded as the physical upgrade of choice. Unlike nose jobs and chin tucks, just about anybody can afford to try this at home. Learn about different whitening techniques and how they work, and decide if you should give it a try.