I believe that it might be because when you are a baby your mom and dad hold you and rock you back and forth when you cried. I don't believe that all people rock back and forth when they cry though.
Can be...I am crazy.
to make sure that they do not tip over
No, not necessarily. Rocking back and forth alone is not an indication of autism, neurotypical people can rock back and forth too! It can be a characteristic of autism known as 'stimming' which is repetitive self-stimulation, it's a means of controlling sensory input to reduce sensitivity to surrounding sensory input.
There are a few mental problems that can cause chronic rocking back and forth. One of the main ones is autism. Also sometimes severe stress, like a nervous breakdown. Rocking back and forth without any other symptoms (like stress or depression) is probably not a real medical condition.
If the motor is moving when you rock the car back and forth in park, it could be due to worn engine mounts that allow excessive movement of the engine. This movement can be transmitted through the drivetrain, leading to the motor shifting position. It is important to have the engine mounts inspected and replaced if necessary to prevent further damage.
Can be...I am crazy.
because that baby could go to sleep
There is nothing to it! Just sit on it and rock back and forth!
The rhythm probably calms them.
Skittles!!
to make sure that they do not tip over
p-waves
If the motor is moving when you rock the car back and forth in park, it could be due to worn engine mounts that allow excessive movement of the engine. This movement can be transmitted through the drivetrain, leading to the motor shifting position. It is important to have the engine mounts inspected and replaced if necessary to prevent further damage.
Forth Eorlingas
Both. Rock is a type of music. A rock is also a part of the sediment of the earth. The verb to rock means to sway back and forth.
back and forth parallel to the direction of wave travel
i think so.. :/ Travel fastest through rock material causing rock particles in the rock to move back or forth