Humans have been using tools from very early times. Philosophers and scientists till very recently believed that humans were the only tool using and tool making species; recent discoveries prove that others, like primates, some birds, and otters use and make tools. And all of them make use of tool either to accomplish a task more easily, or to save energy, or to accomplish something that would be impossible to do without it – like a bear scoops out honey, or a gorilla scoops out ants with a stick.
A tool is a device that provides a mechanical or mental advantage in accomplishing a task. Tools include hand tools (pliers, adze, axe), agricultural tools (scythe, sickle), power tools (drill), machine tools (lathe, milling machine), or anything else. In every instance, a tool enlarges our scope of competence, or makes work easier than earlier.
A machine is any mechanical or organic device that transmits or modifies energy to perform or assist in the performance of tasks. It normally requires some energy source ("input") and accomplishes some sort of work. Machines used to transform heat or other energy into mechanical energy are known as engines. Simple machines would include gear, lever, pulley, wedge, spring, axle and wheel, bearings, belts, seals and chains. With increasing complexity we get the radio, the television and the rocket. In fact, most of the things we see around us are either a machine itself, or the product of machines. Tools and machines are being constantly made to devise new strategies or overcome new scientific problems.
In this section of the web directory we offer links to various industrial machine service companies, emerging technologies, and a whole lot of other engineering and industrial tools and machines.