The coolest tech in eyewear isn’t AI, it’s transition lenses.

For millennia, people have used molten sand and other ingredients to create glass and fashion beads, vessels, lenses and windows. These days, metallic glasses - made entirely of metal atoms - are ...

Polystyrene has a glass transition temperature of about 100 C -- at room temperature it behaves like a solid material. But as its temperature approaches the glass transition temperature, polystyrene’s ...