A computer analysis explains how metal ions bind to porous catalysts called zeolites. How floppy modes give rise to adsorption sites in zeolites. Lipkin, R. 1996. How water reacts with solid catalysts. Pennisi, E. 1992.
Persistence pays off with zeolite gem.
A new fossil analysis finds that members of the Homo species between 1.8 million and 36,000 years ago had considerably bigger bodies than modern humans. They might be giants. Ruff, C., E. Trinkaus, and T. Holliday. Body mass and encephalization in Pleistocene Homo. Smith, B. 1997.