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4B40.32 - Low Temperature Phenomenon

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​4B40.32 - Low Temperature Phenomenon

Title4B40.32 - Low Temperature Phenomenon

To demonstrate how materials change when placed in a low temperature environment, specifically lead.​

Assembly Instructions

Get a dewer of liquid nitrogen, safety gloves and glasses, and the lead material.  Provide tongs in case the item is dropped into the liquid nitrogen.  ​

Setup Time10
Operation Time5
Preview Time5
Operation Instructions

Put on the gloves and safety glasses.  Wrap the lead wire around the provided cylinder to produce a spring-like shape.  Show that the spiral can stretch and deform.  Then dip the coil into the liquid nitrogen and wait til the nitrogen stops boiling.  When you pull it out, show that the lead now has the ability to spring back.  When using the lead bell, show that when you ring the bell before, it makes a thud.  Dip into liquid nitrogen until stops boiling.  Pull it out and show that it actually has a ringing tone once cooled.​

Demo on DimeNo
PIRA 200No
Export Instructions (if different)
HazardsNone, Cold Hazard - Liquid Nitrogen
Category4 Thermodynamics
Subcategory4B - Heat and the First Law
Keywordsliquid nitrogen, lead, bell, spring, low temperature, rigid, springy
Construction Information
liquid nitrogen
gloves for handling liquid nitrogen
lead bell
lead spring
tongs metal 12 inches
liquid nitrogen dewer