1. Microwaves
... a hotplate or a campfire. Infrared rays, flowing from the sun and striking the atmosphere, make the Earth warm and habitable. In a conventional gas or electric oven, infrared waves pour off the hot elements or burners and are converted to heat when they strike air inside and the food. Microwaves and infrared rays are related in that both are forms of electromagnetic energy ... Not surprisingly, as high-powered microwaves have proliferated in the atmosphere and the workplace, a passionate debate has grown over the pontential danger they pose to human health. But that is a topic for anoth...
- Word Count: 1548
- Approx Pages: 6
- Grade Level: High School