How a Forgotten Medieval Clay Recipe Can Save Your Home Energy Bill скачать в хорошем качестве

How a Forgotten Medieval Clay Recipe Can Save Your Home Energy Bill

A recipe that, as modern researchers are now rediscovering, might slash energy bills in today’s homes just as effectively as it saved Lukas’ village nearly 600 years ago. Lukas spent days experimenting in secret, slipping out to his workshop before dawn and returning only when the sun began to fade. His neighbors thought he was simply repairing pots for trade, but the truth was far stranger. He wasn’t shaping bowls or tiles—he was shaping walls. He layered his newest mixture onto a small test frame of wood slats and packed it tight with his hands. When the cold night settled in and frost crept across the ground, he checked the frame again. To his shock, the clay mixture hadn’t frozen. It held warmth, almost like a stone oven long after the fire went out.