The world has many examples of historic pyroclastic flows. The oldest known flow is Mt. Vesuvius, Pompeii in Italy. Donna O’Meara in Volcano shows examples of each of these many volcanoes that have erupted over time. Four recent flows occurred…
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Three words that make science exciting and fun-dry ice experiments. These experiments are easy to do, but they must be done with caution. Grab your tongs and gloves and bring your dry ice out of the freezer for hands-on fun….
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The earth shaking and quaking is not the concern. These are some 8000 earthquakes each year. Eight Of these are major quakes. Yet is is only the earthquakes that cause death that capture the headlines. The actual killer is the…
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A lahar is a mudflow or landslide of tephra or pyroclastic material, ash, shattered rock, dust and other material from a volcanic eruption mixed with water. This collection of loose debris, volcanic ash and water, generally has the consistency of…
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Lahars cause volcanic activity to be as deadly as it is. At rapid speeds, these muddy streams of water, similar to the consistency of wet concrete, carry volcanic debris including ash, cinder, and large boulders down the slopes of volcanoes…
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Estuaries have unique ecosystems combining aspects of the sea and of rivers. Life has adapted to environments that change with the tides and with changing amounts of rain in the rivers. They are valuable for their own sake, their role…
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Lahars are still a very dangerous and life-threatening component of volcanic activity in today’s world. While other aspects can be more physically dangerous, in our technologically advanced society, the seismographic monitoring stations located on most non-dormant volcanoes provide sufficient warnings,…
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For centuries, “sky energy” has fascinated mankind. The sun, stars, moon and wind all have their own energy and all are in the sky, or seem to be as in the case of wind. Some civilizations have or still do…
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When you are considering green home building or renovating and remodelling it can sometimes be difficult to know just where to begin. A good place to start, is to do a bit of a brainstorming exercise. This will help you…
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Solar Energ: Our Hope. We all on earth are facing an energy crisis. Actually we need energy in every walk of life. We need energy to grow food, to desalinize and purify water, to dispose off wastes, to solve medical…
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