it usually is the gear in the transmission Could be the vehicle speed sensor.
You will likely have to replace the speedometer module. You pull it out of the instrument cluster housing after you take off the trim and clear plastic cover and remove a few nuts. It's really easy. Where to find a module? Don't know. I'm still looking for one after my trip odometer quit working. While you've got the trim and clear plastic cover off you can check for burnt out bulbs. Just turn on the park lights and you will know which are not working. Pull them out using one of those lid grippers to open jars. You can remove any of the other modules to get to the burnt out bulbs. Blessings!
no There is a magnetic pickup on the transmission
Most common would be speedometer cable has broken Remove speedometer head and move vehicle to see if cable moves- if not probably broken - if it does probably problem with speedometer head
it is not a shadow
lunar eclipse
i think you know it
The shadow is caused by the light of the sun.
the sun
idfk
Not strictly true to say that the rotation causes the shadow. Part of the Earth would be shaded from the Sun whether or not the Earth rotated.
the position of the sun
The sun