Agriculture ... The history of agriculture dates back thousands of years, and its development has been driven and defined by greatly different climates, cultures, and technologies. However, all farming generally relies on techniques to expand and maintain the lands suitable for raising domesticated species...
Timeline Of Chemistry ... Early ideas that later became incorporated into the modern science of chemistry come from two main sources. Natural philosophers (such as Aristotle and Democritus) used deductive reasoning in an attempt to explain the behavior of the world around them...
Nanotechnology ... Nanotechnology is very diverse, ranging from extensions of conventional device physics to completely new approaches based upon molecular self-assembly, from developing new materials with dimensions on the nanoscale to direct control of matter on the atomic scale... Nanotechnology may be able to create many new materials and devices with a vast range of applications, such as in medicine, electronics, biomaterials and energy production...
The Arts ... Art is a global activity which encompasses a host of disciplines, as evidenced by the range of words and phrases which have been invented to describe its various forms. Examples of such phraseology include: Fine Arts, Liberal Arts, Visual Arts, Decorative Arts, Applied Arts, Design, Crafts, Performing Arts, and so on...
Earth Science ... Beneath the Earth's crust lies the mantle which is heated by the radioactive decay of heavy elements. The mantle is not quite solid and consists of magma which is in a state of semi-perpetual convection...
Cooking ... Preparing food with heat or fire is an activity unique to humans, and some scientists believe the advent of cooking played an important role in human evolution. Most anthropologists believe that cooking fires first developed around 250,000 years ago...
Technology ... The human species' use of technology began with the conversion of natural resources into simple tools. The prehistorical discovery of the ability to control fire increased the available sources of food and the invention of the wheel helped humans in travelling in and controlling their environment...
Environmental Impact Of Nanotechnology ... Impact of Nanotechnology Health impact Environmental impact Societal impact Applications Regulation See also Nanotechnology The environmental impact of nanotechnology are the possible effects that the use of nanotechnological materials and devices will have on the environment... Nanotechnology's environmental impact can be split into two aspects: the potential for nanotechnologcal innovations to help improve the environment, and the possibly novel type of pollution that nanotechnological materials might cause if released into the environment...
Regulation Of Nanotechnology ... Impact of Nanotechnology Health impact Environmental impact Societal impact Applications Regulation See also Nanotechnology Part of a series of articles on Nanotechnology History Impact Applications Regulation Organizations Popular culture Outline Nanomaterials Fullerenes Carbon nanotubes Nanoparticles Nanomedicine Nanotoxicology Nanosensor Nanobiotechnology Molecular self-assembly Self-assembled monolayer Supramolecular assembly DNA nanotechnology Nanoelectronics Molecular scale electronics Nanolithography Scanning probe microscopy Atomic force microscope Scanning tunneling microscope Molecular nanotechnology Molecular assembler Nanorobotics Mechanosynthesis Nanofoundry Nanoreactor Nanotechnology Portal Because of the ongoing controversy on the implications of nanotechnology, there is significant d...
Molecular Nanotechnology ... Projected applications and capabilities Smart materials and nanosensors One proposed application of MNT is so-called smart materials... One example would be materials designed to respond differently to various molecules; such a capability could lead, for example, to artificial drugs which would recognize and render inert specific viruses...
Giant Impact Hypothesis ... The giant impact hypothesis is the currently favoured scientific hypothesis for the formation of the Moon. Supporting evidence includes: the identical direction of the Earth's spin and the Moon's orbit, Moon samples which indicate the surface of the Moon was once molten, the Moon's relatively small iron core, lower density compared to the Earth, evidence of similar collisions in other star systems (which result in debris disks), and giant collisions are consistent with the leading theories of the formation of the solar system...
History Of Chemistry ... Early attempts to explain the nature of matter and its transformations failed. The protoscience of chemistry, Alchemy, was also unsuccessful in explaining the nature of matter...
Photography ... Photography has many uses for business, science, manufacturing (e.g. photolithography), art, and recreational purposes...
History Of Technology ... History of technology By technological eras Neolithic Revolution Renaissance technology British Agricultural Revolution Industrial Revolution Second Industrial Revolution Atomic Age Jet Age Space Age Information Age By historical regions Ancient Egypt Ancient India Ancient China Ancient Greece Ancient Rome Byzantine Empire Medieval Europe Medieval Islamic world By type of technology History of biotechnology History of communication History of computer hardware History of electrical engineering History of materials science History of measurement History of medicine History of nuclear technology History of transport Technology timelines Timeline of historic inventions Complete list Outlines Outline of technology Outline of prehistoric technology Measuring technological progress Many sociologists and anthropologists have created social theories dealing...
Color Photography ... In color photography, light-sensitive chemicals or electronic sensors record color information at the time of exposure. This is usually done by analyzing the spectrum of colors into three channels of information, one dominated by red, another by green and the third by blue, in imitation of the way the normal human eye senses color...
Camera ... Cameras may work with the light of the visible spectrum or with other portions of the electromagnetic spectrum. A camera generally consists of an enclosed hollow with an opening (aperture) at one end for light to enter, and a recording or viewing surface for capturing the light at the other end...
Material ... In this sense, materials are the parts required to make something else, from buildings and art to stars and computers... Raw materials and processing A material can be anything: a finished product in its own right or an unprocessed raw material... Raw materials are first harvested from the earth and divided into a form that can be easily transported and stored, then processed to produce semi-finished materials...
Book ... Books may also refer to works of literature, or a main division of such a work. In library and information science, a book is called a monograph, to distinguish it from serial periodicals such as magazines, journals or newspapers...
Engineering ... The American Engineers' Council for Professional Development (ECPD, the predecessor of ABET) has defined "engineering" as: The creative application of scientific principles to design or develop structures, machines, apparatus, or manufacturing processes, or works utilizing them singly or in combination; or to construct or operate the same with full cognizance of their design; or to forecast their behavior under specific operating conditions; all as respects an intended function, economics of operation and safety to life and property.. ...
Holography ... The holographic recording itself is not a plain image – it consists of an apparently random structure of either varying intensity, density or profile. Overview and history The Hungarian-British physicist Dennis Gabor (Hungarian name: Gábor Dénes), was awarded the Nobel Prize in Physics in 1971 for "for his invention and development of the holographic method"...