Ishraq Ahmad

Scientists were able to measure speed of light that light travels at 186,000 miles per second. But, did you ever thought about the speed of dark? Well, I am not talking about the famous novel by Elizabeth Moon rather I want to find out why scientists have not been able to determine speed of dark or darkness?

According to Wikipedia, dark is defined as absence of visible light and has appearance in black color. Scientists explain dark object as object which absorbs photons and therefore appears dim in comparison to other objects. They believe universe is composed of only 0.5% of stars and rest is darkness. Einstein’s famous theory of relativity also talks about darkness that it’s the empty space that causes the universe to expand rapidly. General public relates dark with evil, shadows and depression. Believe it or not some enthusiasts tried to measure speed of dark and came up with few theories but no one has the exact answer. First theory says that darkness does not move. It’s always present everywhere and it’s the light which overlaps. In other words, consider darkness as table top and light as table cloth. When you pull table cloth from top of table, table becomes dark (which was already present from the beginning). Second theory states that darkness travels at the same speed of light. Both are opposite and equal forces. When one force is absent the other force takes place.

Let’s try to use our common sense (in reality it’s not very common) and see if we can come up with any explanation or answer. Consider that you are standing in an illuminated air tight room with all doors locked and no windows. You are sure that nothing can come from outside. Now, immediately turn off the light. Room went dark and now you can’t see anything. Did you see darkness coming in or spreading across the room? Where did it come from as room was locked? This proves our first theory that darkness is present everywhere and it’s the light which overrides darkness for limited time.

Apart from all this useless discussion, I think, I’ve found speed of darkness. I calculated speed of dark… oops, I can’t see, it’s too dark here.

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Tags: Light, Speed of dark