A compound light microscope magnifies objects in steps. An electron microscope is the type that was used to observe the first strands of DNA. A compound light microscope contains a series of lenses. A compound light microscope includes magnifying glasses. An electron microscope creates a digital image. A simple light microscope uses one lens for magnification.
The wind chill index attempts to tell us what it "feels like" in cold, windy conditions. This index usually indicates the temperature it feels like outside to animals and people. It is also the rate of heat loss when the skin is exposed due to temperature and wind.