Keyboard Bumps
Look at any computer keyboard. We’ll wait for you. Do you see the F and J keys have two small bumps on them? If you’ve ever taken a computer class, you might know why these bumps exist. But, if you’re like the rest of us, you probably have no idea. The little bumps are there to help you find your way on the keyboard while staring at the screen.
Keyboard Bumps
Your left pointer finger will be on F and your right pointer finger will be on J if you type with both hands. This allows you to keep your eyes on the screen while typing, knowing that your hands are in the proper positions.
Black Grating In Microwave
You’ve probably noticed that the door of the microwave has a type of black grating on it. This grating is known as a Faraday shield, and it has a very significant function. The shield prevents electromagnetic radiation from escaping the microwave and harming those waiting for their meal to heat up.
Black Grating In Microwave
You should be grateful that the shield was there for you at 3 a.m., peering into the microwave, waiting for your pizza to warm up. You’d be in danger if you didn’t have the shield, and the microwave wouldn’t be as good at cooking your food. But it makes you ask what precisely happens to our food inside the microwave if it need electromagnetic field protection.
