Black Cat Systems has released version 6.4.0 of the Atomic Mac, a periodic table of the elements and nuclear database for the Macintosh. This new version adds a data for the Bulk, Shear, and Young’s Modulus, as well as the Poisson Ratio for the various elements. The Atomic Mac is priced at US$25, and a free demo is available. Site licenses are also available. In addition, Black Cat Systems offers discounts on registration fees to students, teachers, schools, and other educational institutions.