Corrosionpedia explains Crevice Corrosion. 1  Replace riveted joints with welded butt joints. 2  Eliminate crevices in lap joints through continuous welding and soldering. 3  Drain existing solutions on surfaces and avoid creating stagnant conditions. 4  Use solid and non-absorbent gaskets. 5  Use higher alloys.
WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms blurred vision, dizziness and spinning sensation including Middle ear infection, Labyrinthitis, and Diabetes, type 2. There are 53 conditions associated with blurred vision, dizziness and spinning sensation. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.
The large cavity of the eye is filled with a jelly like substance called vitreous. When we are born it is attached to the back surface of the eye, the retina. As we age the vitreous shrinks. So at some point it has to separate from the retina. This can irritate the retina and cause flashing lights. It can also result in floating spots in our vision. This is because the vitreous surface that was against the retina is now floating in the center of the eye casting a shadow. Most of the time (99+%) this does not cause a problem.