I just saw the new video by It’s Okay To Be Smart (https://youtu.be/FnDP1sjKGfU) and got confused when he said that glass is opaque to the UV light. If it is in fact UV light repellent, why are you still able to get tanned when exposed to the sunlight for example through a car side window?
In: Physics
Your car windshield protects from UV rays. The side windows provide half as much UV protection.
The glass is okay at providing UV protection. But the windshield is laminated with a layer of plastic in the middle (to prevent shattering). The plastic is very good at UV protection.
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