Have you ever wondered why dollar bills are green, and so are pool tables? And jeans now come in all kinds of colors – but why is blue the classic? Just like Facebook, LinkedIn, Twitter, Skype, and Telegram icons.
Those sorts of questions often come to a sleep-deprived brain at half-past too-early AM. Maybe when you get all the answers, you’ll get better and more sound sleep. Let’s try it.
-William Potts, a Detroit police officer, suggested the first modern-type, 3-color traffic lights. He got this idea from railroad signal lights: red, white, and green. White was later replaced by a more visible yellow.
-With the number of counterfeiters growing in the middle of the 18th century, dollar bills needed some protection. That’s when a special green ink was developed.
-Yellow and light-green don’t prevent you from seeing the text after black-and-white photocopying.
-The modern game of pool is the descendant of trucco or lawn billiards. And since grass is green, they later started to cover pool tables with green felt to preserve this tradition.
-In its early days, denim was colored with a natural indigo dye. Unlike other dyes, which penetrated cotton fibers, the blue one stuck to the thread’s surface.
-Blue encourages us to use social media platforms to calmly share our thoughts and photos.
-As a banana ripens, chemical reactions inside its peel break the chlorophyll down. Its levels drop, the fruit loses its bright green coloring, and yellow pigments become more visible.
-Bright penalty cards appeared in the 70s to avoid misunderstanding and truly confusing situations when players didn’t know they’d received a verbal warning.
-In 1883, a printer in Wyoming was working on a phone book when it ran out of white paper. The person operating it didn’t think twice and used yellow sheets instead.
-White reflects sunlight most effectively, which doesn’t let the plane heat up too much. All kinds of cracks, dents, and other damage are more visible on the white background, meaning the fault can be spotted and repaired as fast as possible.
-Flamingos are born gray but later turn pink because of their diet – they eat a lot of tiny shrimps.
-The Yellow River carries billions of tons of yellow silt.
-Red has always been a color associated with a luxurious life. This tradition comes form Ancient Greece.
-In the mid-20th century, a red porcelain enamel that didn’t fade was invented. Ever since, stop signs have been red.
-All light coming from the sun gets scattered in the atmosphere. The blue light travels as smaller, shorter waves. That’s why it gets spread even more than other colors.
-If an orange grows in a cooler place with changing seasons, its skin turns orange as soon as the temperature drops. But if an orange grows in an always hot and sunny climate, chlorophyll remains intact, and the fruit stays green.
-Bread tag colors aren’t random – they indicate the day the bread was baked on.
-An original brown-colored ball was difficult to see for both players and fans since the wooden court is brown too. That’s when they decided to make them a bright unmistakable orange.