Centimeters and Inches The centimeter 1 is a common unit of length from the metric system. It is equal to 10 millimeters and 0.01 meter. In other words, one meter consists of 100 centimeters.
Penumbra is a partial outer shadow that is lighter than the darker inner shadow umbra (e.g. the area between complete darkness and complete light in an eclipse). It is a friâ¦nge section of half shadow resulting from the partial obstruction of light by an opaque object.
Umbra, penumbra and antumbra formed through windows and shutters. The umbra (Latin for shadow) is the innermost and darkest part of a shadow, where the light source is completely blocked by the occluding body. An observer in the umbra experiences a total eclipse.