… and coal, for energy. According to experts these sources will exhaust by the year 2050. Fossil fuels also pollute the environment. So we need to search for alternative energy sources which are reliable and renewable. Wind power is the force of the…

… her life, in July 1937, when she was 19 years old and full of bubbly charm (1). She had recently graduated in chemistry with highest honors from Hunter College, the women's branch of the free but fiercely competitive City College of New York (CCNY).…

… of the scientific elite that sought to answer that question. Is an enzyme alive? Is a virus alive? Is a cell alive? After many hours of launching promising balloons that defined life in a sentence, followed by equally conclusive punctures of these…

… artist, and her husband Joel R. Primack is a professor of physics at the University of California, Santa Cruz. They have been teaching a course at UCSC on Cosmology and Culture for 6 years. Primack currently serves on the executive committee of…

… it can be used to wreak havoc upon mankind. Fission, or the splitting of atoms, can be used to release extreme heat and radiation. During World War II, the United States decided that this would be a powerful weapon, so they dropped two fission bombs…

… dietary guidelines provided in the food pyramid. The table guidelines listed below indicates the minimum number of servings from each food group for each day. The menu attached show examples of these recommendations. The pyramid is divided into…

… use of solar cells. The photovoltaic (PV) effect is the basic physical process through which a PV cell converts sunlight into electricity. Photovoltaics, as the word implies (photo = light, voltaic = electricity), convert sunlight directly into electrici…

… seeking foreign funded project to help the growing economy. The emphasis is often placed on the need for transfer of technology. The transfer of technology means the transfer of knowledge, and technical know-how. The transfer of technology may be defined…

… developments have real and direct effects on every person's life. Some effects are desirable; others are not. Some of the desirable effects may have undesirable side effects. In essence, there seems to be a trade-off principle working in which…

… on the resistance. Apparatus: 3 wires of widths 28, 30 and 36. 1 ammeter - to measure the current in amps 4 crocodile clips - attach to the wires 6 leads - use to connect circuit Ruler - to measure length of wire Masking tape - measure and tape…