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  2. Two Bosses Enter: Keristrasza vs. Cyanigosa - AOL

    www.aol.com/news/2009-01-22-two-bosses-enter...

    Two Bosses Enter ... but only One Boss Leaves, in WoW Insider's series of fantasy death matches. This season's bosses come from the five-man instances of Wrath of the Lich King.We're back! Live ...

  3. One Boss Leaves: Eregos downs Keristrasza - AOL

    www.aol.com/news/2009-11-12-one-boss-leaves...

    Keristrasza's brand of crazy was mind-numbing enough to drop her from the skies in this week's Two Bosses Thunderdome. Eregos maintained the upper hand with a full 50% of the vote in this week's ...

  4. Fermat's principle - Wikipedia

    en.wikipedia.org/wiki/Fermat's_principle

    Fig. 1: Fermat's principle in the case of refraction of light at a flat surface between (say) air and water. Given an object-point A in the air, and an observation point B in the water, the refraction point P is that which minimizes the time taken by the light to travel the path APB .

  5. 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 ...

  6. Cloud physics - Wikipedia

    en.wikipedia.org/wiki/Cloud_physics

    Cloud droplets initially form by the condensation of water vapor onto condensation nuclei when the supersaturation of air exceeds a critical value according to Köhler theory. Cloud condensation nuclei are necessary for cloud droplets formation because of the Kelvin effect , which describes the change in saturation vapor pressure due to a ...

  7. Building blocks of life found in samples from asteroid Bennu

    www.aol.com/news/building-blocks-life-found...

    Bennu's icy parent body, perhaps about 60 miles (100 km) in diameter, appears to have formed in the outer solar system and was later destroyed, possibly 1-2 billion years ago.

  8. Potassium peroxide - Wikipedia

    en.wikipedia.org/wiki/Potassium_peroxide

    Potassium peroxide is an inorganic compound with the molecular formula K 2 O 2. It is formed as potassium reacts with oxygen in the air, along with potassium oxide (K 2 O) and potassium superoxide (KO 2). Crystal structure. Potassium peroxide reacts with water to form potassium hydroxide and oxygen: 2 K 2 O 2 + 2 H 2 O → 4 KOH + O 2

  9. Acetyl group - Wikipedia

    en.wikipedia.org/wiki/Acetyl_group

    In organic chemistry, an acetyl group is a functional group denoted by the chemical formula −COCH 3 and the structure −C(=O)−CH 3.It is sometimes represented by the symbol Ac [5] [6] (not to be confused with the element actinium).