Computer that allows downloading (and uploading in some cases) of files by the use of file transfer protocol (FTP) over the internet. There are over a thousand FTP sites with hundreds of thousands of text, graphics, sound, and video files freely available to anyone. However, a FTP site is not a website because its data cannot be displayed like a webpage. See also anonymous FTP.
Scientific tools for making observations include a microscope, which is a tool used to see very small objects. In your science lab you use a compound microscope to see cells in 2-D, but a scientist can use a scanning electron microscope to view tiny objects in 3-D.
Types and Uses of a Grinding Machine. The grinding machine is a type of tool that is utilized for grinding work pieces. It basically use an abrasive wheel as the cutting tool. The rough surface of the abrasive wheel shreds off small portions of the work piece as required. It is also known as a grinder.