Whilst the world was preparing for COP26, a Purdue professor and his team of researchers announced the formulation of the world’s whitest acrylic paint. Dr Xiulin Ruan, a professor of mechanical engineering at the university, said the paint, which contains an extremely high concentration of barium sulphate, has the ability to reflect 98.1% of solar […]

Posted: November 14, 2021

If ancient Egyptians used passive evaporative cooling with porous pots of water and damp curtains, the Arabs took it a step forward with wind catchers and muscatese window designs to keep their living quarters cool

Posted: March 5, 2015

So the Romans had hypocausts and frigidariums and the Koreans had ondols. And the Indus Valley Civilisation may have predated them all when it came making indoor air behave itself. But wait, the Egyptians were pretty cool too!

Posted: February 5, 2015