Murali Duggineni

Murali Duggineni

How a wallpaper idea popped into Bubble Wrap

In 1957, Swiss inventor Marc Chavannes and American engineer Alfred Fielding tried to revolutionize interior décor with a new kind of textured plastic wallpaper. They used a heat-sealing technique to trap air between two plastic shower curtains, producing sheets of…

How a choir book helped invent Post-it notes

One Sunday in 1974, Art Fry, a 3M engineer and choir singer, grew frustrated when the bookmarks kept falling out of his hymn book. That minor inconvenience sparked a major innovation. Fry recalled a low-tack adhesive developed by his colleague,…

Picture of Mark Twain sitting on a bench

How Samuel Clemens became Mark Twain

Samuel Langhorne Clemens, an iconic American author active primarily in the late 19th and early 20th centuries, adopted the pen name Mark Twain from his experiences working as a steamboat pilot on the Mississippi River. The phrase “mark twain” was…

A person holding salt as a prized commodity in their hands

How salt defined one’s worth in ancient times

Did you know the expression “worth one’s salt” means to be competent, good enough to justify one’s earnings or position? The phrase originates from ancient times when salt was a highly prized commodity due to its flavor-enhancing properties and its…