… and their control The emission of several neutrons in the fission process leads to the possibility of a chain reaction if at least one of the fission neutrons induces fission in another fissile…

… or produced in modifying the composition of the atomic nucleus. Nuclear energy is used for things such as atomic bombs, hydrogen bombs and other nuclear weapons. Nuclear energy can also be used for powering electricity-generating plants all over…

… of Evolution by Natural and Sexual Selection Introduction It is commonly thought today that the theory of evolution originated from Darwin in the nineteenth century. However, the idea that species mutate over time has been around…

… Bones in Space ASTRONOMY AND SPACE SCIENCE ------------------------------------------------------------------------------ Hypogravitational Osteoporosis: A review of literature. By Lambert…

… forms abnormal spongy bone. #+ # The disease results in a conductive hearing loss that, may spread to the inner ear resulting in a sensorineural hearing loss.# Otosclerosis may be caused by infection or a jarring blow to the head.# The sound entering…

… animals? Recent research indicates there's more to penguins than meets the eye. If you've every wondered what it would be like to be able to see as clearly under water as you can on land, just ask the nearest penguin.Most aquatic…

… both Marie and David are taking evening classes at a local community college, working full time, and two children to take care of. David found a new job last year before he was laid off but he does not get along well with his boss. Marie is not complet…

… may be created by substituting some or all of the hydrogen of a phosphoric acid by metals. Depending on the number of hydrogen atoms that are replaced, the resulting compound is described as a primary, secondary or tertiary…

… and discusses organisms that use this process. Photosynthesis is the process in which plant cells take sunlight and carbon dioxide and synthesize glucose. This process occurs in plants, algae, and some prokaryotes and protists. Many organisms…

… principles (see Genetics) to the development of improved strains of agricultural and horticultural crops. Plant breeders can adapt old crops to new areas and uses; increase yields; improve resistance to disease; enhance the nutritional quality and…