{"product_id":"model-seismographhubbard-31487","title":"Model Seismograph-Hubbard","description":"\u003cp\u003eAn excellent demonstration of how a real seismograph records the shock waves associated with earthquakes and other disturbances.     The recorder is attached to a weight suspended from a support. The support moves with fine vibrations while the recorder remains stationary. Vibrations are recorded on a strip of paper and vary with the amount of vibration in the table on which the model is mounted.     Includes teacher’s guide. Size: 31 x 15 x 13cm.\u003c\/p\u003e","brand":"Nova Scotia School Book Bureau","offers":[{"title":"Default Title","offer_id":43664683073596,"sku":null,"price":54.5,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/nssbb.ednet.ns.ca\/products\/model-seismographhubbard-31487","provider":"Nova Scotia School Book Bureau","version":"1.0","type":"link"}