Sam | Sustainable Living on Instagram: "This is a time machine, but not in the way you’d expect! It actually gives billions of people their time back! So 60% of the world still hand-washes clothes, that’s over 5 billion people, and that task falls mostly on women and girls who spend up to 20 hours a week on laundry alone. But The Washing Machine Project are on a mission to change that. They’ve created the world’s first flat-packable manual washing machine that doesn’t use electricity, needs half

Heat Transfer - Conduction, Convection, and Radiation