Earth can be divided into layers where the topmost layer is the crust, with the mantle in between and the innermost is the core. The densest and hottest layer is the core and the least dense and coolest layer is
Just a few hours of baking in a conventional lab oven transformed the mixture into a single atomic layer of zinc-oxide with a smattering of cobalt atoms sandwiched between layers of graphene. In a final step, the graphene is burned away, leaving behind just a single atomic layer of cobalt-...