The deceptively cute Gray Jay is one of the most intrepid birds in North America, living in northern forests year-round and rearing chicks in the dark of winter. Highly curious and always on the lookout for food, Gray Jays eat just about anything, from berries to small animals. They may even land on your hand to grab a raisin or peanut.
A thermal insulator is something that prevents heat from moving from one place to another. There are 3 main ways that heat can travel: convection, conduction, and radiation. Typically the phrase 'thermal insulator' refers to a material that blocks conduction.
The correct insulating materials will keep liquid hot for long periods, whether itâs for the water boiler at home or a flask of coffee. Poor insulators, also known as conductors, lose heat quickly. Examples of bad heat insulators include metals such as copper and steel, commonly used for radiators that conduct heat efficiently. There are a range of materials that can serve as insulators for hot water, each with its own application.