Business / Search Engine Optimization (SEO) / Dynamic Content: Content which changes over time or uses a dynamic language such as PHP to help render the page. In the past search engines were less aggressive at indexing dynamic content than they currently are. While they have greatly improved their ability to index dynamic content it is still preferable to use URL rewriting to help make dynamic content look static in nature.
Content Adjective Synonyms: capacity, volume, size, measure
Content Noun Synonyms: substance, subject-matter, significance, purport, import, essence, text, theme, topic, thesis
Dynamic Adjective Synonyms: dynamical, vigorous, active, forceful, energetic, potent, powerful, high-powered, lively, spry, vital, electric, spirited, zealous, eager, emphatic
Business / Search Engine Optimization (SEO) / Fresh Content: Content which is dynamic in nature and gives people a reason to keep paying attention to your website. Many SEOs talk up fresh content, but fresh content does not generally mean re-editing old content MORE
Science / Biology / First Law Of Thermodynamics (Conservation): Energy is neither created nor destroyed, it changes from one form to another. MORE