Scientific writing is writing about science. Different fields have different conventions for writing style, and individual journals within a field usually have their own style guides; in general, scientific writing emphasizes plain and accurate descriptions rather than rhetorical flourishes. wikipedia.org

Technical writing, a form of technical communication, is a style of writing used in fields as diverse as computer hardware and software, engineering, chemistry, the aerospace industry, robotics, finance, consumer electronics, and biotechnology. wikipedia.org

Writing in these forms or styles is usually written in an impersonal and dispassionate tone, targeted for a critical and informed audience, based on closely investigated knowledge, and intended to reinforce or challenge concepts or arguments. wikipedia.org

A blog is a personal journal published on the World Wide Web consisting of discrete entries ("posts") typically displayed in reverse chronological order so the most recent post appears first. wikipedia.org

Professional writing involves the use of clear language to convey information in a way that is easily understood by the intended audience. Individuals who can use language well may be employed as full-time professional writers in a variety of communications-related occupations, such as wikipedia.org

Mechanical engineering is a discipline of engineering that applies the principles of physics and materials science for analysis, design, manufacturing, and maintenance of mechanical systems. wikipedia.org

Research and development (R&D, R+D, or R'n'D), known in Europe as research and technological development (RTD), refers to innovative activities undertaken by corporations or governments in developing new services or products, or improving existing services or products. wikipedia.org

Nanotechnology is the manipulation of matter on an atomic, molecular, and supramolecular scale. wikipedia.org

Materials science, also commonly known as materials science and engineering, is an interdisciplinary field which deals with the study of matter and their properties; as well as the discovery and design of new materials. wikipedia.org