When we think of rust—iron oxide—we usually refer to its negative effects in terms of corrosion and material degradation. But rust does have its uses: It can function in some cases as a protective ...

Boston College. "Rust can power up artificial photosynthesis: Chemists produce power boost critical to novel energy harvesting applications." ScienceDaily. ScienceDaily, 11 October 2013.

In the fight to kill planet-cooking carbon emissions, rechargeable lithium-ion batteries have become a core technology. They can power electric cars that get more than 300 miles per charge. They can ...