The Blue Side Of An Eraser
You remember those erasers we used back in school which had one side to be blue and the other to be red? Back in school, we were told the blue is meant for erasing pen writings, most of us tried it and it obviously didn’t work, we ended up tearing our books.
This is because the blue side is not meant for that, it is actually meant for erasing pencil writings on hard surfaces while the red side was meant for erasing pencil writings on soft surfaces. Now you have it, you can teach it to your children so they don’t repeat your mistake..
The Bump At The End Of A Laptop Cable
The bump at the end of your laptop cable known as ferrite beads is not there to distract you or mess up your day. It is not just there for fun but serves a good purpose. It is there to prevent interference in the cable.
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