Solar storms can affect the Earth's magnetic field causing small changes in its direction at the surface which are called 'magnetic storms'. A magnetometer operates like a sensitive compass and senses these slight changes. The soda bottle magnetometer is a simple device that can be built for under $5.00 which will let students monitor these changes in the magnetic field that occur inside
Physicists have predicted that at the Big Bang, black holes with sizes from 10^-5 grams up to perhaps solar mass size might have been formed. Use the above formulae to predict the mass range of the black holes would have lasted as long as the present age of the universe, between 9 billion to 15 billion years, and which should just now be evaporating completely away. Predict what the final few
The Florida Solar Energy Center conducted a research project on low-cost panel type solar ovens for the Dorothy Ann Foundation on behalf of Solar Household Energy, Inc. The overall purpose of the research project was to attempt to improve the performance, reliability and cost-effectiveness of low-cost solar cookers for use in developing nations.
This project was adapted from Science Projects in Renewable Energy & Energy Efficiency written by the National Renewable Energy Laboratory, published and copyright 1991 by the American Solar Energy Society, and distributed by the National Energy Foundation.
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