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  2. Water-energy nexus - Wikipedia

    en.wikipedia.org/wiki/Water-energy_nexus

    Hybrid Sankey diagram of 2011 U.S. interconnected water and energy flows. The water-energy nexus is the relationship between the water used for energy production, [1] including both electricity and sources of fuel such as oil and natural gas, and the energy consumed to extract, purify, deliver, heat/cool, treat and dispose of water (and wastewater) sometimes referred to as the energy intensity ...

  3. The Death Gate Cycle - Wikipedia

    en.wikipedia.org/wiki/The_Death_Gate_Cycle

    The names "Sartan" and "Patryn" are defined in the books as "Those Who Bring Back Light," and "Those Who Return to Darkness" respectively. A footnote suggests that the Lord of the Nexus took the name "Xar" from the Russian word tsar, which itself is a corruption of Caesar. The Patryn city of Abri takes its name from the French word for "shelter".

  4. Water, energy and food security nexus - Wikipedia

    en.wikipedia.org/wiki/Water,_energy_and_food...

    Concepts such as integrated management consider at least one of the systems as an existing system and are therefore different from the nexus approach. This approach identifies the future systems as inherently interconnected. The nexus approach aims to highlight potential synergies and identify critical conflicts to be dealt with. [11]

  5. 127 Light Air Defence Regiment (Composite) - Wikipedia

    en.wikipedia.org/wiki/127_Light_Air_Defence...

    127 Light Air Defence Regiment (Composite) was raised on 31 March 1951 as 127 Light Anti-aircraft Regiment (Territorial Army) at Satara. It was raised as a single class regiment with Maratha troops. At formation, the regiment was equipped with Bofors 40 mm L/60 guns. [1] [2]

  6. Alexstrasza - Wikipedia

    en.wikipedia.org/wiki/Alexstrasza

    Alexstrasza, also known as Alexstrasza the Life-Binder, is a major character in the Warcraft franchise created by Blizzard Entertainment.A female red dragon with the power to shapeshift into the form of a High Elf, she is the queen of all dragons and the leader of the organization known as the red dragonflight.

  7. Umbra, penumbra and antumbra - Wikipedia

    en.wikipedia.org/wiki/Umbra,_penumbra_and_antumbra

    An alternative definition is that the penumbra is the region where some or all of the light source is obscured (i.e., the umbra is a subset of the penumbra). For example, NASA's Navigation and Ancillary Information Facility defines that a body in the umbra is also within the penumbra. [2]

  8. Photosystem II - Wikipedia

    en.wikipedia.org/wiki/Photosystem_II

    In 2011 the OEC of PSII was resolved to a level of 1.9Å revealing five oxygen atoms serving as oxo bridges linking the five metal atoms and four water molecules bound to the Mn 4 CaO 5 cluster; more than 1,300 water molecules were found in each photosystem II monomer, some forming extensive hydrogen-bonding networks that may serve as channels ...

  9. Postulates of special relativity - Wikipedia

    en.wikipedia.org/wiki/Postulates_of_special...

    1. First postulate (principle of relativity) The laws of physics take the same form in all inertial frames of reference.. 2. Second postulate (invariance of c) . As measured in any inertial frame of reference, light is always propagated in empty space with a definite velocity c that is independent of the state of motion of the emitting body.