It's something you see almost every day - but most people never stop to question why they're there or what they do. The small dots around a car's windscreen can easily go unnoticed even by those who have been driving for years.
Wondering why they're there, one Reddit user asked: "What are those little black dots that surround my windshield for?" It turns out they actually have a very important purpose - and without them, driving would be extremely dangerous. A statement on Autoglaze reads: "The black dots, or dot matrix, actually help distribute temperature evenly to lessen optical distortion or lensing.
