Black Grating In The Microwave
Even if you do not inspect your microwave too closely, this feature is quite easy to notice. The Faraday shield, which is the black grating found on the door of the appliance, is very important since it prevents the escape of electromagnetic fields from the microwave. Without it, people would be warmed instead of food getting cooked. It is definitely a necessary safety feature!
Black Grating In The Microwave
Dimples On Golf Balls
If you look at a golf ball closely, you will notice that it has dimples all over. Apparently, golfers observed the tendency of balls with nicks to travel a longer distance. Drag is reduced because the imperfections create turbulence. They wanted more lift so they added dimples to golf balls. However, it will not be particularly helpful if you only play putt-putt.
Dimples On Golf Balls
