Phys.Org (March 6) -- The physical process controlling heat flow between metals and diamond has remained a mystery to scientists for many years. By applying extreme pressure in a diamond anvil cell to metal films on diamond, researchers at Illinois have now determined the physical process dominating this unexplained heat flow, which has implications for understanding and improving heat flow between any two materials. Also: NanoWerk (March 6), ScienceBlog (March 6), R&D Magazine (March 6), Engineering.com (Ontario, March 9).