Scientists have created "nano-ink" that regulates the temperature in the premises.

The innovative ink uses nanotechnology to control temperature. They achieve this by adjusting the amount of radiation that can pass through them depending on external conditions. Passive climate control will provide comfortable living conditions without unnecessary energy consumption. For example, in winter, paints can automatically let in more solar radiation during the day and retain heat better at night, and vice versa in summer. The ink can be sprayed or added to paints and building materials. They can also be added to extreme temperature-regulating clothing or electronic devices.