The enduring luster of gold, the conductivity of copper, the strength of steel—the special properties of metals have reshaped societies and defined eras; they have such an important role in human history that entire ages have been named after them. But what gives metals their astounding characteristics? From the perfect ring of a bronze bell to the awe-striking steel construction of Beijing’s “Bird’s Nest” stadium, how have humans perfected metalworking? And how have metals enabled our modern hi-tech world? Explore the science of metals with chemists and engineers as they literally test the mettle of metals and investigate how these remarkable materials have ushered humanity from the Stone Age to the stars.
Science in Antarctica will shut down for the winter. Scott Base has plenty of logistics to manage in order to send teams out to finish their missions for the season. The USS Coast Guard crew is challenged by their aging ship as they try to finish cutting a channel in the ice before they escort the ship in. The Mt. Erebus team struggles to salvage as much data as they can before they go home.
An average guy Jeb Berrier, makes a resolution to stop using plastic bags at the grocery store. Little does he know that this simple decision will change his life completely. He comes to the conclusion that our consumptive use of plastic has finally caught up to us, and looks at what we can do about it.
2010 • Environment
The picturesque Lake Constance region is characterized by intensive agriculture - with dramatic results for the bird life. Since 2003, the ornithologist Professor Peter Berthold has been creating new habitats for birds - alongside cultivated landscapes.
The semantics of the model I'm working from use common goods/common property/ common pool resources (resources used by multiple people) and common property regimes (the institutions or social arrangements between people, the property rights regarding common pool resources).