You’ve probably always wondered what those tiny black dots are for at the lower end of your windshield. Probably, if you’re ...

They often start out as solid black bands near the edge, and gradually dissolve into small dots at the outer edge." ...

They often start out as solid black bands near the edge, and gradually dissolve into small dots at the outer edge. "They are seen on windscreens and other parts of your car’s glass windows.