Here are some random facts for you.
1. The technology of smoke detectors was invented by accident. In the 1930s, a Swiss physicist named Walter Jaeger was trying to develop a sensor for detecting poison gas. His device wasn’t registering gas at all, so out of frustration, he lit a cigarette. And the smoke moved the meter on his gadget.
2. The Pledge of Allegiance was originally created as a marketing scheme to help sell more flags to public schools.
3. More Americans died in the Civil War than any other war we’ve fought in, about 625,000, or 2% of the population at the time. Of course, it makes sense that more Americans died in the Civil War, we were killing each other.
4. You could fit every single planet between the Earth and the Moon and still have a few thousand miles to spare.
5. About 25% of the hazelnuts in the world are used to make Nutella.
(NRC / Pricenomics / History / BBC / Wikipedia)
