Examines the significance of Bruno's arguments from a scientific viewpoint. It is felt that even when correct in their conclusions, Bruno's scientific'' arguments do not exhibit any understanding of scientific reasoning or purpose. (DF)

Proposes using the idea of entrophy as a major component of science courses from a very early stage, via a study of changing systems. The concept of entropy can provide a basis for considering the environment, and even a basis for an ethical code. (AL)

Presents the basic ideas of modern spectroscopy. Both the angular momenta and wave-nature approaches to the determination of energy level patterns for atomic and molecular systems are discussed. The interpretation of spectra, based on atomic and molecular models, is considered. (LC)

Describes the operational principles of magneto hydro dynamic generators and considers environmental advantages of their use. (AL)

Presents schemes for classifying the properties of matter and the conditions which may affect these properties. (WB)

The piezoelectric materials generate electricity or electric polarity in dielectric crystals when subjected to an applied voltage. The nanorings and nanobows are presented that can be used in nanoscale applications such as sensors, transducers, and electromechanical coupling devices.

Expert scientific inquiry involves the generation and use of analogies. How and when students might develop this aspect of expertise has implications for understanding how and when instruction might facilitate that development. In a study of K-8 student inquiry in physical science, we are examining cases of spontaneous analogy generation. In the…

Twenty three at-risk high school female students who had failed mathematics and science in a traditional school setting were the subjects of this study that integrated mathematics and science lessons over a period of four weeks. Using a combination of direct instruction, calculations, graphing, hands-on projects, and discussion, the topic of…