# Analysis

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## What is mw and what is gwh in electrical terms - Yahoo! Answers

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## Research and development

Cycle of research and development The term R&D or research and development (or RnD especially in domain names; or Research and Technical Development ; or Research and Technological Development or RTD in Europe) refers to a specific group of activities within a business. The activities that are classified as R&D differ from company to company, but there are two primary models.
The Solar Two solar-thermal power project.

## Heliostat

Business process outsourcing ( BPO ) is a subset of outsourcing that involves the contracting of the operations and responsibilities of specific business functions (or processes ) to a third-party service provider.
Energy is the capacity of a system to do work.

## What is Energy?

In physics, energy is an indirectly observed quantity which comes in many forms, such as kinetic energy , potential energy , radiant energy , and many others; which are listed in this summary article.

## Barrel (unit)

A barrel is one of several units of volume , with dry barrels , fluid barrels ( UK beer barrel , US beer barrel ), oil barrel , etc.
For a topical guide to this subject, see Outline of the metric system .

## British thermal unit

The British thermal unit (symbol Btu or sometimes BTU ) is a traditional unit of energy equal to about 1055 joules . It is the amount of energy needed to heat one pound of water by one degree Fahrenheit. In scientific contexts the Btu has largely been replaced by the SI unit of energy, the joule .

## Joule

The joule ( pron.: / ˈ dʒ uː l / or sometimes / ˈ dʒ aʊ l / ), symbol J , is a derived unit of energy , work , or amount of heat in the International System of Units . [ 1 ] It is equal to the energy expended (or work done) in applying a force of one newton through a distance of one metre (1 newton metre or N·m), or in passing an electric current of one ampere through a resistance of one ohm for one second.

## Pascal (unit)

The pascal (symbol: Pa ) is the SI derived unit of pressure , internal pressure , stress , Young's modulus and tensile strength , [ 1 ] named after the French mathematician, physicist, inventor, writer, and philosopher Blaise Pascal .
The metre ( meter in American English ), symbol m , is the fundamental unit of length in the International System of Units (SI). [ 1 ] Originally intended to be one ten-millionth of the distance from the Earth's equator to the North Pole (at sea level), its definition has been periodically refined to reflect growing knowledge of metrology .

## Metrology

This article is about the science of measurement. For the study of weather see Meteorology . A scientist stands in front of a micro arcsecond (1 millionth of 1 arcsecond or 1 millionth of 1/3600 degree) testbed.

## Second

A light flashing approximately once per second The second (symbol: s ) is the base unit of time in the International System of Units (SI) [ 1 ] and is also a unit of time in other systems of measurement (abbreviated s or sec [ 2 ] ).