Demonstration of thermal expansion: metal expanding when heated. Hot water from a facet runs over the aluminium lid of a jam jar held by a hand. During thermal expansion, every linear dimension increases by the same percentage with an increase in temperature, including holes. This assumes that the expanding material is uniform. Applied to a metal jar lid, this implies that the inside diameter of the lid will increase, tending to loosen the lid. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Science Source |
Bildgröße: | 4929 px × 3550 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |