Radiation

Radiation
Heat and light are two forms of radiation that we experience every day. Radiation travels through empty space. Space without air is a vacuum. The light from the sun travels through the vacuum of space to get to Earth. This light from the sun comes in through the windows of your house and is absorbed by furniture, walls, and floors and is reradiated as heat. This can feel good in the winter but may make your house or a room too warm in the summer. Understanding radiant energy like heat and light becomes important for learning how to make your home more comfortable and also save money on heating and cooling bills.