Description: The term ‘hollow’ refers to a shape that is curved inward, creating a hollow space or depression on its surface. This geometric characteristic can be observed in various structures and objects, from kitchen utensils to architectural components. The hollow shape is often contrasted with the solid shape, which is filled and does not contain an inward curve. In geometry, a hollow object can be described as one that, when cut by a plane, presents a cross-section that is smaller than that of the entire object. This property is fundamental in the design and functionality of many elements, as it allows for the accumulation of materials, the concentration of forces, or the creation of useful spaces. In the field of optics, hollow lenses are used to diverge light, making them essential in the manufacture of glasses and other optical devices. The hollow shape is also found in nature, such as in the shells of certain mollusks or in the cavities of some fruits. In summary, the concept of hollow is crucial in multiple disciplines, from mathematics to engineering and art, due to its versatility and functionality.
