Actress | Producer. Halle Berry was born in Cleveland, Ohio. Her father, Jerome Jesse Berry, was African-American, and worked as a hospital attendant. Her mother, Judith Ann (Hawkins), who is Caucasian, has English and German ancestry, and is a retired psychiatric nurse. Halle has an older sister named Heidi Berry.
Raw Materials. The main ingredient of lyocell is cellulose, a natural polymer found in the cells of all plants. It forms the basis for other plant-derived fibers such as cotton, hemp, and linen. The cellulose for lyocell manufacturing is derived from the pulp of hardwood trees.
A photocell is any of a wide range of sensors that react based on the presence of light or electromagnetic energy. They can be found in many different forms, from solar panels that use light to generate electricity, to photoresistors, which shift in resistance based on how much light is present.