It's often said that while leaning your arm out the window when driving can cause a nasty sunburn, you're fine if the windows are rolled up. But is it true?

This was because the clear glass allowed UV rays to penetrate the beer and alter the flavour. The solution was turning bottles brown, a darker colour which would block out the rays. After World ...

When exposed to UV light, a chlorine radical is released from the ... discovered a method that enables the near-complete breakdown of acrylic glass into its monomer building blocks. By using additives ...