Process engineering involves utilization of multiple tools and methods. Other advocates concentrate on educating scientists about appropriate open science software tools. It is also possible to open Excel files using certain online tools and services. Colonies can be enumerated from pictures of plates using software tools. They share expertise, experiences, tools, and methods. Many of his tools and techniques were considered experimental. They require no special tools or skills to operate. Some of the best interactive web tools for educators. Relays were used for control of automated systems for machine tools and production lines. This reference book featured tips on using online financial tools. Projects range from games to animations to practical tools. Pages used to feature a number of other advanced writing tools. Exact measurement was also key to the development of machine tools. There are many environmental health mapping tools. Elephants are among the species known to use tools.