Technology Supplies Ltd Conductivity Bars and Cylinder

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Main Menu > Science > Heat Energy > Thermal Conductivity > Conductivity Bars and Cylinder

	Wood/Metal Bar 300 x 18mm Ref: 270-124 A wooden rod is firmly attached to a copper tube of the same diameter. If a sheet of paper is wrapped around the apparatus and passed slowly through a Bunsen flame the paper browns on the wooden end but not the metal end. For demonstrating conductors and insulators. Size 250 x 20mm dia. £11.25(Excluding: VAT at 17.5%)


	Wood/Metal Cylinder 200 x 30 Ref: 270-156 Comprising a cylinder 200 x 30mm dia. One half of which is wood, the other metal. If paper is wrapped tightly round the cylinder and the rod is held above the flame, the portion in contact with the wood will be quickly scorched while the portion in contact with the metal will remain uncharred. £8.64(Excluding: VAT at 17.5%)


	Thermal Conductivity Bars Ref: 270-144 Durable liquid crystal strips embedded in the bars show how a green zone of 40°C moves up the bars. The colours give a dramatic view of conduction. The marked difference in temperature gradients in the bars is also visible. Immersing heated bars into cold water shows how conductivity applies to heat leaving the metal a vital teaching point and a unique feature of this product. The tops of the bars are designed to be touched with a fingertip to reinforce the colour observations. Click here for a bigger image £22.15(Excluding: VAT at 17.5%)

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