Hand Boiler: Magic Heat Transfer Glass Novelty & Science Gadget Multi-function LED Glow Poi slow-moving

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Hand Boiler: Magic Heat Transfer Glass Novelty & Science Gadget Multi-function LED Glow Poi slow-movingMagic Heat Transfer Hand Boiler: Scientific Novelty Desk Toy Experience the amazing phenomenon of the Magic Heat Transfer Hand Boiler! This intriguing scientific novelty demonstrates the power of thermal energy in a captivating way. Simply hold the lower part of the glass tube and watch the coloured liquid magically boil as it shoots up to the upper chamber. This is not actual boiling, but a demonstration of heat transfer and thermodynamics: the heat