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Conductometer

 

Conductometer
Product Code: PS1004
Price: $14.99
Shipping weight: 2.00 pounds

 
  • For demonstrating the different heat conductivity of five metals by observing the melting of wax.
  • Consists of five rods (l x d), 75 x 5mm of aluminum, brass, iron, copper, and stainless steel which are radially fitted on a brass disk of about 27mm diameter.
  • Each of these rods have a cavity at the outer end for holding paraffin wax. The central disk is joined to an insulated handle by 125mm long plated steel rod. Overall length about 32cm.
 
 
 

Ring & Ball Apparatus

 

Ring & Ball Apparatus
Product Code: PS1011
Price: $11.95
Shipping weight: 2.00 pounds

 
  • For demonstrating the expansion or contraction of metals.
  • Consists of two brass rods with insulated handles. One of the rods has a ring and the other one has a ball of approximate diameter 25mm, attached at the end. The brass ball passes through the ring when both are at room temperature, but when the ball is heated it expands and can not pass through the ring.
 
 

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