Orders placed online and which are over $299 ex gst are delivered freight free anywhere in Australia. Offer is valid until 31 December 2020 and excludes: (i) orders involving chemicals and (ii) orders involving oversized items such as safety cabinets, ovens, incubators, trolleys etc. Such items are highlighted on our website.
The IEC 'Wave Demonstration Spring Set' is a pair of special springs used for teaching wave motion. The large spring (75x110mm DxL) is known as the 'Lazy Dazy' or 'Slinky' spring and it stretches out to about 10m long. It is used for demonstration of transverse wave motion, standing waves and so on. The other spring is a long thin spring (20x1800mm DxL) which can be stretched to about 10m long. This is used for demonstrations of longitudinal wave motion and standing waves. We also supply these springs individually.