Energy storage is accomplished by devices or physical media that store energy to perform useful operation at a later time. A device that stores energy is sometimes called an accumulator.
All forms of energy are either potential energy (e.g. Chemical, gravitational, electrical energy, temperature differential, latent heat, etc.) or kinetic energy (e.g. momentum). Some technologies provide only short-term energy storage, and others can be very long-term such as power to gas using hydrogen or methane and the storage of heat or cold between opposing seasons in deep aquifers or bedrock. A wind-up clock stores potential energy (in this case mechanical, in the spring tension), a battery stores readily convertible chemical energy to operate a mobile phone, and a hydroelectric dam stores energy in a reservoir as gravitational potential energy. Ice storage tanks store ice (thermal energy in the form of latent heat) at night to meet peak demand for cooling. Fossil fuels such as coal and gasoline store ancient energy derived from sunlight by organisms that later died, became buried and over time were then converted into these fuels. Even food (which is made by the same process as fossil fuels) is a form of energy stored in chemical form.
Trans fats are a type of unsaturated fat which is uncommon in nature but can be created artificially.
Hydrocarbons are carbon atoms with hydrogen atoms attached to them. Fats (fatty acids) contain long hydrocarbon chains. The carbon atoms in the chain can be connected by single bonds or double bonds. A double carbon–carbon bond can be either across (trans) or bent (cis). In the vegetable and animal kingdoms, fatty acids generally have cis (as opposed to trans) unsaturations. In food production, liquid cis-unsaturated fats such as vegetable oils are catalytically hydrogenated to produce partially or completely saturated fats that melt at a desirable temperature (30–40 °C). Trans fats are an artificial contaminant introduced by an isomerization side reaction on the catalyst in partial hydrogenation.
Human nutrition is the provision to obtain the essential nutrients necessary to support life and health. In general, people can survive for two to eight weeks without food, depending on stored body fat and muscle mass.]citation needed[
Poor nutrition is a “chronic problem related to poverty, poor nutrition knowledge and practices, and poor sanitation and food security,” Lack of proper nutrition and balanced meals contributes to worse class performance, lower test scores, and eventually less successful students and a less productive and competitive economy. that provide many challenges to individuals and societies. Malnutrition and its consequences are immense contributors to deaths and disabilities worldwide. Promoting good nutrition helps children grow, promotes human development and advances economic growth and eradication of poverty. .
The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (TCP/IP) to serve several billion users worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are linked by a broad array of electronic, wireless and optical networking technologies. The Internet carries an extensive range of information resources and services, such as the inter-linked hypertext documents of the World Wide Web (WWW), the infrastructure to support email, and peer-to-peer networks.
Most traditional communications media including telephone, music, film, and television are being reshaped or redefined by the Internet, giving birth to new services such as voice over Internet Protocol (VoIP) and Internet Protocol television (IPTV). Newspaper, book and other print publishing are adapting to website technology, or are reshaped into blogging and web feeds. The Internet has enabled and accelerated new forms of human interactions through instant messaging, Internet forums, and social networking. Online shopping has boomed both for major retail outlets and small artisans and traders. Business-to-business and financial services on the Internet affect supply chains across entire industries.