jueves, 17 de marzo de 2011

A2 Classification Biological Classification

Biological Classification

The scientific classification of life, otherwise known as 'biological classification', is the method used by biologists to group organisms together by type. The different levels are called taxa. The different taxa are: Kingdom, Phylum, Class, Order, Family, Genus, Species.

Kingdom is the broadest of the taxa. All animals are in Kingdom Animalia. All plants are in Kingdom Plantae. Linnaeus attempted to name organisms in a way that would make sense to all scientists. For example, the group “Mammalia” was named for the mammary glands with which they nurse their young. Linnaeus' system recognized two 'Kingdoms' - Vegetabilia and Animalia. Today, most biologists utilize a six Kingdom system, as follows: Animalia, Plantae, Fungi, Chromista, Protozoa, Bacteria.

Domain, a level above Kingdom, has become popular in recent years. A three-domain system was first proposed in 1990, but has not yet been generally accepted amongst biologists.



Source: http://www.bellaonline.com/articles/art70331.asp


A1 Definition Molecular manufacturing


Molecular manufacturing

Molecular manufacturing is a branch of nanotechnology that involves the use of nanoscale (extremely small) tools and non-biological processes to build structures, devices, and systems at the molecular level. Nanoscale objects have dimensions on the order of a few nanometers (nm) or less, where 1 nm is equal to a billionth of a meter (10-9 m). Molecular manufacturing is distinct from nanoscale technology, another major branch of nanotechnology in which standard size tools are used to manufacture simple nanoscale structures and devices.

Nanotechnology has potential benefits, including water purification, sanitation, agriculture, alternative energy (particularly photovoltaic), home and business construction, computer manufacturing, communications, and medicine. Nanotechnology also poses risks, including economic disruption, misuse by people or organizations with nefarious intent, evolution of extreme governmental regulation, controversies over morality, and damage to the environment.

Definition: Molecular Manufacturing.
Glossary:

  • Disruption: To interrupt or impede the progress, movement.
  • Nanotechnology (noun): The science and technology of building devices, such as electronic circuits, from single atoms and molecules.
  • Non-biological (adj): Not involving, relating to, or derived from biology or living organisms.
  • Photovoltaic (noun): Are arrays of cells containing a Solar photovoltaic material that converts solar radiation into direct current electricity.
  • Structures (noun): The way in which parts are arranged or put together to form a whole
  • Technology (noun): The branch of knowledge that deals with the creation and use of technical means and their interrelation with life, society, and the environment, drawing upon such subjects as industrial arts, engineering, applied science, and pure science.



              

viernes, 11 de marzo de 2011

welcome to my new blog

I welcome you to my blog, which I created to improve my performance in English class, it will serve as a tool to develop knowledge through reading and activities. the blog can be found readings related to topics of my interest, which will be focused on the content I've seen in class.