After a "click", I witnessed the magic of light

Really, even now, I still find LED a bit counterintuitive!

When I was a child playing with light bulbs, if the tungsten filament broke, they were completely ruined. Later, when I came into contact with circuits, the notion that any cut in a line meant no electricity was passing through was deeply rooted.

It was not until I cut off a luminous LED light strip for the first time.

With a "click", I even felt a bit regretful the moment the scissors went down. It turned out that it was lit up at both ends of the cut!

At that moment, there was really a magical feeling. It's just like when you fold a magic wand into two pieces, both pieces are still glowing.

Later on, I came to understand that LED light strips are actually a parallel combination of multiple independent circuits, and each light-emitting unit is a self-sufficient "small world". Cutting merely separates individual complete circuits, and each fragment still forms a closed loop.

But after understanding the principle, the shock of the first witness still remained, and it overturned my perception of "completeness".

It turns out that completeness doesn't necessarily mean physical continuity; it can also be the independent completeness of each fragment.

Now, every time I cut the LED light strip, looking at the light still shining at the cut end, I still recall that afternoon when I first discovered it. Some things, seemingly cut off, can still maintain their integrity and brightness.

This is probably what good technology is all about. It not only solves problems but also offers you some unexpected metaphors about life.