A thin NITINOL wire loop is connected around two pulleys. The lower pulley is placed half way into the water at 35-40 degrees celcius and an ice cube gently touched to the wire. If the wire is gently spun downward through the ice cube into the water bath, it will continue to spin, cutting the ice cube in two.
Alternatively, a glob of crushed ice placed around the wire as it enters the box will cause the wire to circulate as described above, as shown in the photograph.
Show several types of thermometers. Read More
Illustrate thermal expansion in a paradoxical way. Read More
Demonstrate thermal expansion. Read More
Demonstrate differential thermal expansion. Read More
Demonstrate thermal expansion in a complicated way. Read More
Demonstrate thermal expansion in a dramatic way. Read More
Measure coefficients of linear expansion. Read More
Model of use of a bimetal strip in a thermostat. Read More
Allow students to see how bimetallic strips are used in thermometers and thermostats. Read More
Demonstrate differential thermal expansion between two liquids, and to take us all back to the 1960s. Read More
Demonstrate that the maximum density of water occurs around 4 degrees centigrade. Read More
Demonstrate the change in the density of water with temperature. Read More
To demonstrate that rubber contracts when heated. Read More
Demonstrate thermoelectric power generation or how thermoelectric devices can create hot and cold regions. Read More
Demonstrate production and use of thermoelectric current. Read More
Illustrate generation and use of thermoelectric current. Read More
Demonstrate how a normally elastic material at room temperature becomes rigid at very low temperatures. Read More
Demonstrate the change in frequency of a tuning fork at liquid nitrogen temperature. Read More
Demonstrate the effect of temperature on vibrations in a lead bell. Read More
Produce a dust explosion. Read More
Show why small particles of flammable material can create a dust explosion when ignited. Read More
Produce a hydrogen explosion. Read More
Demonstrate features of the burning process and to debunk myths about this supposedly well-known demonstration. Read More
Illustrate shape-memory alloy. Read More
Illustrate shape-memory alloy. Read More
Illustrate shape-memory alloy. Read More
Illustrate shape-memory alloy. Read More