The Double Slit Experiment, the name may sound banal, but it is like opening a door to a microscopic world of wonderland. It is more than a simple experiment, it is a mysterious dance that reveals the nature of light.

As if you were holding a magic brush in your hand, you gently traced two hair-thin lines on a clean white canvas. These two lines are the "double slits" in the double-slit experiment. They are quietly lying there as if waiting for something.

Then the scientists brought out a brilliant laser beam that lit up the two lines like a spotlight on a stage. As the laser beam was directed at these two tiny holes, an incredible show was about to unfold. Instead of simply being projected onto the canvas, the light passing through these two holes creates a series of fantastical patterns. These patterns are not haphazard, but rather a series of light and dark stripes, like the tracks left by waves on a beach. These streaks did not appear because there was anything dirty on the canvas, but rather the fluctuating nature of light was at work. Light does not travel in a straight line as we see it with the naked eye; it is a fluctuation, like ripples on water. When light waves pass through the double slit, they superimpose and interfere with each other, forming these marvellous streaks. The magic of the double-slit experiment is like a bottomless magic box, and there is much more to it than meets the eye. When we look at the dimension of time, the power of this experiment is even more breathtaking.

When you point at the screen and look closely at those intertwined stripes woven by photons, you seem to be swept into a fantastic interweaving of light and time. Those streaks are not just traces of light, they are more like a bundle of wonders through time and space, and each streak contains the unique memory of a photon. These photons, not only left their footprints on the screen but also carved there belong to their time marks. These marks are like footprints left on the beach, each string recording the photons' once glorious journey. They have travelled through space and time, stretching from the distant past to our eyes. These footprints tell us what twists and turns the photon has experienced on its journey, and how it has left its traces in the long river of time. Such a scene makes people feel as if they are in a microscopic world full of fantasy and mystery.

The reconstruction of time, a seemingly ubiquitous but elusive dimension, seems to be an epic adventure across an endless universe. Scientists, like a group of brave explorers, who shoulder the heavy responsibility of revealing the mystery of time, embarked on this rugged road of exploration. They are in the depths of the laboratory as if they were in a labyrinth full of unknowns and wonders. Every experiment is a brave march into the depths of time. They plan carefully, operate meticulously, and try to capture the subtle changes of time with various scientific instruments. However, time does not easily show its true face to people, it is like a cunning elf, sometimes hidden in the dark, sometimes showing a mysterious smile. Scientists face endless challenges and difficulties. Sometimes, the results of the experiments are very different from their expectations, which makes them feel confused and lost; sometimes, they find some unexpected phenomena in the experiments, which makes them excited and nervous at the same time.

In this adventure into the dimension of time, scientists are like a group of curious children playing and groping in the unknown universe. Each of their discoveries is a piece of the jigsaw puzzle on the mystery of time, albeit fragmentary, but with time, these jigsaw puzzles will gradually put together the mysterious and fascinating full picture of time. So, despite the winding road ahead, full of challenges, scientists will never stop exploring time. With their wisdom and courage, they have unveiled the veil time and time again and again, giving us a glimpse of the profound mysteries hidden behind the everyday. Let's expect these brave explorers to continue to bring us more surprises and discoveries about time in the future so that our lives will be more colourful because of our understanding of time.

（Writer：Ciki）