Need new glasses? Online eye exams and vision tests offer a convenient way to get a glasses prescription. Doctors explain whether these services are worth trying.

MILAN - Long-known as a wedding registry tableware staple, fabled crystal glass firm Saint ... I mean, the refraction to the light. It's just absolutely superb," he mused. Were Saint Louis ...

This week, head along to see Sweet Charity, attend the Open Day at Tuggeranong Homestead, and more! It's all happening in ...

Plenty is happening in Canberra this weekend to keep you booked and busy. Here's your curated guide to what's on, from ...

Geologists have found that an ancient meteorite hit Scotland 200 million years later than previously thought, which has ...

Muis explains, "We use photonic crystals, which are slabs of silicon with a regular pattern of very small holes, which forbid light propagation in the silicon slab, in principle. But, when we ...

These crystals, often hexagonal in shape, act like tiny prisms—bending, refracting, and reflecting light to produce the dramatic 22-degree halo seen around the sun. In some cases, a rarer double ...

Among them, photomechanical crystals deform in response to light, making them promising for lightweight and remotely controllable actuation. Their performance depends on factors such as molecular ...

Researchers at Rice University have developed a sophisticated 3D photonic-crystal cavity that can trap and control light in ...