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2. Pareto principle - Wikipedia

   en.wikipedia.org/wiki/Pareto_principle

   Pareto principle. The Pareto principle may apply to fundraising, i.e. 20% of the donors contributing towards 80% of the total. The Pareto principle (also known as the 80/20 rule, the law of the vital few and the principle of factor sparsity [1] [2]) states that for many outcomes, roughly 80% of consequences come from 20% of causes (the "vital ...

3. Ultraviolet - Wikipedia

   en.wikipedia.org/wiki/Ultraviolet

   Ultraviolet ( UV) light is electromagnetic radiation of wavelengths of 10–400 nanometers, shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun. It is also produced by electric arcs, Cherenkov radiation, and ...

4. 80 Plus - Wikipedia

   en.wikipedia.org/wiki/80_Plus

   80 Plus. Logo. 80 Plus (trademarked 80 PLUS) is a voluntary certification program launched in 2004, intended to promote efficient energy use in computer power supply units (PSUs). Certification is acquirable for products that have more than 80% energy efficiency at 20%, 50% and 100% of rated load, and a power factor of 0.9 or greater at 100% load.

5. Five-Percent Nation - Wikipedia

   en.wikipedia.org/wiki/Five-Percent_Nation

   The Five-Percent emblem, also known as the Universal Flag of Islam (I-Self Lord and Master). Clarence 13X, the founder of the Nation of Gods and Earths. The Five-Percent Nation, sometimes referred to as the Nation of Gods and Earths (NGE/NOGE) or the Five Percenters, is an Afro-American Nationalist movement influenced by Islam that was founded in 1964 in the Harlem section of the borough of ...