Summary:

- The article discusses the development of "smart windows" that can automatically adjust their transparency to control the amount of light and heat entering a building, inspired by the behavior of pinecones.
- Researchers have created a polymer-based material that can mimic the way pinecones open and close their scales in response to changes in humidity, allowing the windows to open and close to regulate temperature and light.
- This technology could lead to more energy-efficient buildings by reducing the need for air conditioning and heating, and could have applications in various industries, including architecture, transportation, and consumer electronics.