Whether it’s something as simple as a button on your jeans, or something that’s part of a larger moving mechanism, here are 26 secrets to everyday things you probably didn’t know about.
Doorknob
You use doorknobs every day, so it’s right to be concerned about how many germs could be on them. However, they have made doorknobs out of brass partly for that reason. Brass provides an antimicrobial effect, eliminating the microorganisms that were hoping to start a colony on your doorknob.
One-fifth pocket
Your pants have that one-fifth pocket that’s recognized as the small useless one. Originally it was there to provide a safe place for your pocket watch, something that was necessary when first implemented in 1901. It then remained for traditional purposes. However, it’s still a great place to put your tic tacs.
Gas indicator
You’re in a new car or a rental, and the gauge tells you the gas is getting low. You don’t know which side the fuel cap is on from the inside. It can cause unnecessary effort at the gas station. However, your fuel gauge has an arrow that reminds you which side to fill your gas tank up from. Some models of cars may also just have a gas tank hose instead, with the hose pictured on the side that the cap is on.
Hole at the bottom of the plane window
If you’ve been lucky enough to get the window seat on the plane, you would have noticed the little hole at the bottom of the window. It helps with the air pressure on the plane. The window itself is made from acrylic and isn’t actually glass, which saves it from fogging up, so you can see the scenery on your journey.
The windows on planes were originally square. However, they would continuously break from the constant changes in pressure. Round windows are able to evenly distribute the pressure, ensuring you’ll have a pleasant journey without falling out!
