gas-spring
| 16:38 Mar 24, 2011 |
| English language (monolingual) [PRO] Science - Science (general) / science/ seismic tremors and magma wagging | |||||
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| 4 | spring action from gas bubbles in volcanic rock |
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| Discussion entries: 2 | |
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Answers
4 hrs confidence: 
spring action from gas bubbles in volcanic rock Explanation: A "gas spring" is used in all kinds of mechanical devices including door closure mechanisms. In the case of your text, I belived that are talking about the "highly vesicular annulus of sheared bubbles." The vesicles are the spherical cavities found in volcanic rock and the annulus (ring like structure) is made of the rocks with bubbles that may explain the "remarkably narrow band of frequencies" of oscillation in otherwise different volcanic eruptions. HERE ARE A FEW MECHANICAL REFERENCES ON GAS SPRINGS: This document has many diagrams which you may find useful "Nautilus is still using the variable resistance cam and improving on those machines with the 2ST series. These machines are quieter and smoother with needle bearings. Also the seat is easily adjusted to any position using a gas spring." http://scholar.lib.vt.edu/theses/public/etd-5115131974430/et... To actuate the mechanism, an appropriate gas-spring is sought. As a case study a prototype is manufactured and mounted on a sample hatchback car to check the mechanism performance. http://etd.lib.metu.edu.tr/upload/3/12610942/index.pdf |
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