Glass is made of sand, which is a kind of rock. But glass is transparent. We explore why! Glass is made of sand, which is a kind of rock. But glass is transparent, and rocks aren’t transparent. What’s ...

It's a lovely summer weekend morning. We relax in our living room with the sunlight coming gently through the windows. We glance outside and can see the green leaves and watch birds in the yard. We ...

Researchers discover how molecules in ancient glass rearrange and recombine with minerals over centuries to form a patina of photonic crystals -- ordered arrangements of atoms that filter and reflect ...

Glass may look just like a normal solid, but at the microscopic level it behaves in surprisingly complex ways Atoms in a glass do not form a crystalline lattice but are found in a disordered state ...