![](https://cdn.myportfolio.com/235dd0c8-23a1-481e-bd15-e08ef8e53b53/4f30e58c-cf12-4f5f-95bd-3b5eea77041a_rw_1920.jpg?h=a0ec5132b7dc33f3e220fb0136501edd)
pyramid (mirroring)
Sugar cubes, mirrorĀ (30 x 30 x 8 cm)
Model of a model from a 1970s physics textbook demonstrating the physical properties of a crystal. Apart from the reference to the ancient burial sites, pyramid models are commonly used to describe hierarchically organized structures or quantities (ecological-, productivity-, population-, food- or organization pyramids).
![](https://cdn.myportfolio.com/235dd0c8-23a1-481e-bd15-e08ef8e53b53/2d707eae-3fc3-4bad-b720-f42ee18b90b5_rw_600.jpg?h=946cc55144d1628badf656bfaf6fd2e5)