Understanding Glass: Mysteries and Discoveries

What distinguishes glass from crystalline solids like ice?

• Glass is a type of metal.

• Glass has a random atomic arrangement.

• Glass is a liquid at room temperature.

• Glass has a repeating crystal pattern.

How much would glass in a cathedral flow over a billion years at room temperature?

• One nanometer

• One centimeter

• One millimeter

• One meter

What is a key characteristic of 'ideal glass'?

• It has a high heat capacity at absolute zero.

• It has a random molecular arrangement.

• It is less dense than regular glass.

• It has a low entropy similar to crystals.

What technique is used to create ultra-stable glass?

• High-pressure molding

• Laser etching

• Vapor deposition

• Rapid cooling

Why is old cathedral glass thicker at the bottom?

• It was due to the glassmaking technique used.

• It was affected by temperature changes.

• It was made thicker at the bottom.

• It has sagged over time.