Lascells Gravity Well-The gravity well is an exciting piece of apparatus which allows students to visualise the attraction of massive objects due to gravity. Consisting of a flexible sheet and collapsible frame, the gravity well is supplied with all you need to bring the study of gravity to life. Coalescence of stars .Orbiting . Variation of orbital period with distance from star. Formation of orbital systems Measuring 180cm diameter by 80cm high when assembled, the unit gives an impressive demonstration and packs away for easier storage. Supplied with full instructions and suggested experiments. Dimensions: 1500 x 155 x 155mm boxed