Bullet proof vests, fire escapes, windshield wipers, and laser printers were all invented by women.
1k
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
In a year approximately 900 million trees are cut down to make the raw materials needed for American pulp mills and paper.
-16
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
The hole in the soda can tab is actually used to hold a straw in place and stop it from rising.
27
The number of text messages sent and received in a given day is greater than the world's population.
198
Kilts are not native to Scotland. They originated in France.
57