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Rescuing 10 sources and tagging 0 as dead.) #IABot (v2.0.1
पंक्ति 32:
 
== बाहरी कड़ियाँ ==
* [https://web.archive.org/web/20030415215731/http://neic.usgs.gov/neis/seismology/history_seis.html The history of early seismometers]
* [https://web.archive.org/web/20090819083311/http://www.ifg.tu-clausthal.de/java/seis/sdem_app-e.html A Java code applet demonstrating the operation of a damped-mass seismometer]
* https://web.archive.org/web/20090201201214/http://neic.usgs.gov/neis/seismology/keeping_track.html
* [https://web.archive.org/web/20050901150700/http://www.geonet.org.nz/mrz-drum.html Link to live '''Seismic Drum''' at Geonet's Mangatainoka River station in New Zealand]
* [https://web.archive.org/web/20090204130757/http://psn.quake.net/lehman.txt The Lehman amateur seismograph, from Scientific American]- not designed for calibrated measurement.
* [https://web.archive.org/web/20050930020139/http://geohazards.cr.usgs.gov/staffweb/mcnamara/Pubs/Reports/sts2OFR2.0.pdf USGS evaluation of Streckheisen STS-2 Seismometer models]- Streckheisen is a common make of research seismometers
* [https://web.archive.org/web/20100102032452/http://www.pnsn.org/ Pacific Northwest Seismograph Network]-PNSN is a seimograph network in the northwest USA
* [https://web.archive.org/web/20100306010240/http://www.suitable.com/tools/seismac.html SeisMac] is a free tool for recent Macintosh laptop computers that implements a real-time three-axis seismograph.
* [https://web.archive.org/web/20080908113454/http://www.iris.edu// The Incorporated Research Institutions for Seismology (IRIS)] is a principal U.S. seismological instrumentation and data facility, principally supported by the [[National Science Foundation]] and the [[U.S. Department of Energy]].
* [https://web.archive.org/web/20100216093149/http://www.flickr.com/photos/waiferx/2658307394/in/set-72157606105014024/ Video of seismograph at [[Hawaiian Volcano Observatory]]] - on [[Flickr]] - retrieved on 2009-06-15.
 
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