A photograph of the patterned foam Laaksonen etal. (2022)
Camouflage made from biodegradable foams of algae and cellulose derived from wood pulp or tree bark could make objects in forests difficult to spot with visible and infrared light.
Full spectrum cameras can detect a wide range of wavelengths of light, so it is no longer good enough for camouflage to conceal objects in the visible part of the spectrum alone.
Päivi Laaksonen at the Häme University of Applied Sciences, Finland, and her colleagues combined the insulating properties of a cellulose-based foam with…
