Cities will grow alongside growing populations, turning the land in their wake into housing and infrastructure. And when that happens, we can goodbye to the food, a new study warns.
European cities like Paris are much, much older than American cities like New York, and that age difference has led to many interesting differences in the layout of each city. For example, the wealthy population of America often live in suburbs away from the city while in Europe, the rich live inside the city. Why is that?
For the past sixteen
It seems counterintuitive, right? Rip out eight lanes of freeway through the middle of your metropolis and you’ll be rewarded with not only less traffic, but safer, more efficient cities? But it’s true, and it’s happening in places all over the world.
The most popular artificial material on Earth isn’t steel, plastic, or aluminum — it’s concrete. Thousands of years ago, we used it to build civilizations, but then our knowledge of how to make it was lost. Here’s how we discovered concrete, forgot it, and then finally cracked the mystery of what makes it so strong.