The Periodic Debate has attracted many comments; we speak to Philip Stewart, one of the leading commenters

Wonderlab is undergoing some scheduled maintenance and Sophie is sure she turned everything off

An overview of hybrid car sales by region, hybrid type, and brand

Maps showing the location of the main producers of elements and the amounts produced

Kai Sundmacher talks about his involvement with Ullmann's Encyclopedia, bioscientific principles in chemical engineering, multi scale consideration

Professor Kurt Wagemann on future changes of chemical engineering, biotechnology, the DECHEMA, and the best parts of his job

Michael Röper talks about his involvement with Ullmann's Encyclopedia throughout the years and what he enjoys most about his career

Simply stirring a gelled solution of dye can result in circularly polarized luminescence

Tobias Stengler talkes about his interest in chemistry and the sciences and the connection between chemistry and fine arts

Peter Atkins' new book, On Being, exploring the great questions of existence is reviewed by Uwe Meierhenrich