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University of Colorado
University of Colorado: Natural Hazards Center: Natural Hazards Observer
A publication of the Natural Hazards Center focusing on natural disaster research. Specific information available for numerous subtopics.
Arizona State University
Arizona State University: Natural Horn & Its Technique
Arizona State's descriptions of the horn are broken up by illustrations of the horn, players, and music. There is a big discussion of crooks (not the kind that go to jail), but the kind that are made when you bend metal! The author notes...
University Corporation for Atmospheric Research
Ucar: Measuring Density by Bending Light
Middle schoolers observe how different materials bend light, and how we can infer the nature of the material based on the amount it bends light rays.
Fourmilab Switzerland
John Walker: Inconstant Moon: Moon at Perigee and Apogee
Most people think of every full moon as appearing the same, but careful observation allows us to see that sometimes the Moon appears larger than at others. This is caused by the elliptical orbit of our natural satellite.
Other
U of Cambridge: Tycho Brahe and the Separation of Astronomy From Astrology
The subject of the paper is the shift from an astrology-oriented astronomy towards an allegedly more objective, mathematically grounded approach to astronomy. This shift is illustrated through a close reading of Tycho Brahe's scientific...