OBJECTS ARE APPROACHING EACH OTHER
We can see at the beginning of the animation that the circle that represents the
Electromagnetic Wave Pack is between the observer and the Source. When the observer moves, not only does the circle come towards the observer at c speed, but it is also carried by the observer in the direction of the movement. As the speed of the observer is more than “c”, the circle passes over the Source object and moves forward in the direction of the movement. Therefore, in this case, the circle has to carry out its scanning function from the back to the front and the order in which the electromagnetic waves forming the
Electromagnetic Wave Pack are included in the pack changes. Electromagnetic waves join the electromagnetic wave pack from the Source Object’s points that are close to the Observer when the radius of the circle is big, and from the Source Object’s points that are far away from the Observer when the radius gets smaller. For this reason, the Image Object forms in the reverse way.
Formation of Reverse Image is valid for Source Objects that stay in the front of the direction of the Observer’s movement.
In the part Dimension Shift, the fact that the speed of the Observer increases results in the lengthening of the Image Object.
If the acceleration continues after exceeding the speed of light limit c, the length of the Image Object starts to return to normal. You can see this return to normal by running the animation at 1.6 c and 1.8 c values. However, the formation of Reverse Image, of course, continues. At 2 c value, the Image Object becomes equal in length to the Source Object. If the 2 c value is exceeded, the Image Object starts to shorten in the direction of the movement, but the Reverse Image view continues.
You can watch the cases described above by using the controls in the animation. I suggest you increase the distance between the Observer and the Source Object by using the slider bar. In this case, the deformation formed on the Y axis for the Image Object will be too little to notice and the change on the X axis will be seen more clearly.
THE OBJECTS ARE MOVING AWAY FROM EACH OTHER
In the movements faster than light, if two objects are moving away from each other, Reverse Image does not form. The Image Object seems more contracted in the direction of the movement.
I would like to clarify a subject here. There is an opinion that, in case an object moves faster than light, the light coming behind the object cannot reach it. This is not true because the electromagnetic wave pack that comes toward the object enters the field of that object. As the field of the object is carried by the object in the direction of the movement, the electromagnetic wave that moves at c speed relative to the field which it is in reaches the object at c speed even if it comes from behind. I will draw an analogy here. Let’s imagine an ant walking on a paper. Also imagine that, when we move the paper with our finger, the ant will keep walking. Dragging the paper fast or slowly will not change anything. If the place that the ant is going is our finger, it will reach our finger. Let’s make a replacement in this example in this way: the finger->object, paper->the field of the object, and ant->electromagnetic wave. The flow of the event will be exactly like in the ant example. No matter what speed the object moves at – and it may move faster than the speed of light, too – an electromagnetic wave that moves inside its field will reach it.
FORMATION OF REVERSE IMAGE
Please pay attention to the previous animation. The Observer can see the Image Object that turned into the Reverse Image form only after it passes the Source Object. As the Observer moves faster than light, it cannot see the Reverse Image before that. On the other hand, if the Observer passes the Source Object, there is no need for the formation of Reverse Image. Therefore, Reverse Image is a phenomenon that occurs for a temporary period of time. The length of this time changes depending on the distance between the two objects and the difference between the speeds of these two objects. At the end of this period of time, the Reverse Image disappears.
The animation here displays the formation of Reverse Image in a continuous manner. The speed of the observer is 1.25 c.
- As soon as the observer passes the sun, the formation of Reverse Image beings in front of the observer.
- After that, a secondary Image Object forms behind the observer.
- After a while, the Reverse Image in front of the observer disappears.
- At the last stage, there is only one Image Object left behind the observer.
You will find an advanced version of this animation with explanations in the part Faster Than Light.
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