Volvo gave away the 1962 patent for their revolutionary three-point seat belt for free, in order to save lives.
It would take about eleven thousand copies of Leonardo da Vinci's "The Last Supper" to cover Vatican City.
In Idaho, You may not fish on a camel's back.
What’s inside a Kit Kat? Broken Kit Kats that are damaged during production—they get ground up and go between the wafers inside, along with cocoa and sugar. That’s a way to not let anything go to waste.
According to a 2015 study, having 10 more trees on your block can make you feel as healthy as someone who's seven years younger.
The inventor of the microwave appliance only received $2 for his discovery. Percy Spencer was working as a researcher for American Appliance Company (now Raytheon) when he noticed a radar set using electromagnetic waves melted the candy bar in his pocket. He had the idea to make a metal box using microwaves to heat food, but the company was the one to file the patent. He received a $2 bonus but never any royalties.
Koalas mostly eat eucalyptus leaves, which don't provide much in the way of nutrition or calories. As a result, koalas sleep up to 20 hours a day.
There's a town in the US state Texas called Ding Dong.
Sea otters are known to use tools. They crack open sea urchins, clams, and other prey with rocks.
The ocean doesn't reflect the blue sky. It actually absorbs it. Blue light goes deeper, so that's why the ocean appears blue.
The first cargo trucks appeared at the end of the 19th century. They ran on steam power, and they were most popular in Great Britain.
A group of crows is called a flock or a murder.