Primary waves travel through Earthâs crust at an average speed. of about 5 kilometers per second (3 mi/s). Primary waves can travel. through solids, liquids, and gases. As they pass through a material, the. particles of the material are slightly pushed together and pulled apart.
Why This Occurs. Emotional detachment is usually an issue caused by severe, intense anxiety - most notably panic attacks, although any form of severe anxiety can cause emotional detachment. While it's not entirely clear what causes this detachment, it most likely is a coping mechanism for the brain.
Causes of retinal detachment are: 1  Tears or holes in the retina. 2  These may lead to retinal detachment by allowing fluid from the middle of the eye (vitreous gel) to collect under the retina. 3  A common cause of retinal tears is posterior vitreous detachment (PVD).