Inversion, definition of

A layer of warm air that prevents the rise of cooling air and traps pollutants beneath it; can cause an air pollution episode.

• Inversion: Steven Holl Unveils LED-lit Sculptures Carved from 21 Million-Year-Old Stone for Milan Design Week
  Steven Holl Architects has an incredible installation planned for Milan’s Interni Hybrid Architecture Exhibition. Called INVERSION, the installation consists of six void-cut limestone sculptures made from 21 million-year-old Italian stone. The LED-lit...