Most of the renewable energy sources that are under consideration involve an obvious source of energy -- light, heat, or motion. But this is the second time this year there has been a paper that has ...

Anaerobic methane formation and anaerobic methane oxidation are important microbial processes in the global carbon cycle. Both processes are mediated by syntrophic communities of bacteria and archaea.

A reusable hot pack made of a supersaturated sodium acetate solution that crystallizes spontaneously once triggered by a metal piece releases heat. A balloon filled with hydrogen gas also releases ...