1)   RF ToolBox 3.2.0 Takes you step by step through the design of these antennas: Dipole Fat Dipole Yagi J-Pole Super J-Pole Log Periodic Cubic Quad Vertical Helical. Also performs various transmission line and network calculations. 2)   Atomic PC 6.4.0 Periodic table of the elements software. In addition to the usual information found in such programs, it also contains a wealth of nuclear information on each isotope, including half life, decay mode, and daughter products. 3)   PL Table 4.30 This Periodic Table is an excellent tool for both students and serious researchers. It includes over 20 types of data on each element, most of which can be corelated in a particle or line graph. It even has a powerful chemical equation balancer 4)   Equation Illustrator V 2.2.9 Equation Illustrator V is designed to ease the production of single page handout type documents and web graphics that include math/chemical equations simple vector graphics and pictures. 5)   RF ToolBox 3.2.0 Takes you step by step through the design of these antennas: Dipole Fat Dipole Yagi J-Pole Super J-Pole Log Periodic Cubic Quad Vertical Helical. Also performs various transmission line and network calculations. 6)   Atomic Mac 6.4.0 Periodic table of the elements software. In addition to the usual information found in such programs, it also contains a wealth of nuclear information on each isotope, including half life, decay mode, and daughter products.