You may remember your first iPod but do you remember the first iPod? Test your music listening memory hear!

Bubble wrap was invented in 1957 by engineers Alfred W. Fielding and Marc Chavannes, who sealed two shower curtains together, creating a smattering of air bubbles, which they initially tried to sell as wallpaper. In 1960, they realized their product could be used for protection in packaging, and they founded Sealed Air Corporation. When the inventors showed it to IBM, which had just launched its first mass-produced computers, the tech company became the first big bubble wrap client.

A ten-year-old mattress weighs double what it did when it was new due to debris that it absorbs over time. That debris includes dust mites (their droppings and decaying bodies), mold, millions of dead skin cells, dandruff, animal and human hair, secretions, excretions, lint, pollen, dust, soil, sand, and a lot of perspiration, which the average person loses at a rate of a quart a day. Good night!

Photosynthesis is the process by which plants convert sunlight into energy through the absorption of light energy by pigments such as chlorophyll. This energy is then used to convert water and carbon dioxide into glucose and oxygen through a series of chemical reactions.

Nearly 3% of the ice in Antarctic glaciers is penguin urine. Due to the temperature being well below zero, urine can't evaporate.

Apple introduced the first iPod in 2001.