Question

What you can do with hot liquid glass:

Answer 1

Explanation:

Glass comes in the insulator class of material which means its a poor conductor of heat. When you pour a very hot liquid into a thick tumbler what happens is, the surface of glass that comes in the contact with the hot liquid heats up and expands as per its coefficient of thermal expansion, while the outer layer is cold and does not expands. This leads to development of thermal stresses which eventually causes cracking.