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.
1 Copper is a good conductor and isn't too expensive, so it's used a lot for the wiring in homes today. 2  Insulators are the opposite of conductors. 3  An insulator is a material that doesn't carry electricity. 4  Insulators are important because they can protect us from electricity. Copper is a good conductor and isn't too expensive, so it's used a lot for the wiring in homes today. 2  Insulators are the opposite of conductors. 3  An insulator is a material that doesn't carry electricity. 4  Insulators are important because they can protect us from electricity.