See through wood

Developed – see-through wood, which is treated to become as clear as glass and is a potential alternative to regular windows. It is 5 times as insulative and 3 times as durable while also being lighter, making it perfect for cold weather structures.

The scientists used wood from the fast-growing, low-density balsa tree. It is treated to a room temperature, oxidizing bath that bleaches it of nearly all visibility. The wood is then penetrated with a synthetic polymer called polyvinyl alcohol (PVA), creating a product that is nearly transparent.