Walled City Walls are tall, thin walls that can be built to keep out the heat.But the walls aren’t always as sturdy as we might think, especially if you’re on a tight budget.A few years ago, researchers in Australia were testing the effectiveness of this type of wall in their lab.The researchers wanted to test […]
What is ‘Walled City Wall’? It’s a giant concrete wall, but it’s also a place where people can go to escape the heat
