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2. Blue Star (company) - Wikipedia

   en.wikipedia.org/wiki/Blue_Star_(company)

   Blue Star was founded in 1943 by Mohan T Advani as a reconditioning company. [4] [5] Soon after inception, Blue Star ventured into the manufacturing of ice candy machines and bottle coolers and began the design, execution of central air conditioning projects, followed by the manufacturing of water coolers.

3. Stellar classification - Wikipedia

   en.wikipedia.org/wiki/Stellar_classification

   Stellar classification. In astronomy, stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a prism or diffraction grating into a spectrum exhibiting the rainbow of colors interspersed with spectral lines.

4. Water dispenser - Wikipedia

   en.wikipedia.org/wiki/Water_dispenser

   Water dispenser. A water dispenser, sometimes referred to as a water cooler (if used for cooling only), is a machine that dispenses and often also cools or heats up water with a refrigeration unit. It is commonly located near the restroom due to closer access to plumbing. A drain line is also provided from the water cooler into the sewer system.

5. Blue giant - Wikipedia

   en.wikipedia.org/wiki/Blue_giant

   Blue giant. In astronomy, a blue giant is a hot star with a luminosity class of III ( giant) or II ( bright giant ). In the standard Hertzsprung–Russell diagram, these stars lie above and to the right of the main sequence . The term applies to a variety of stars in different phases of development, all evolved stars that have moved from the ...

6. B-type main-sequence star - Wikipedia

   en.wikipedia.org/wiki/B-type_main-sequence_star

   A B-type main-sequence star (B V) is a main-sequence ( hydrogen -burning) star of spectral type B and luminosity class V. These stars have from 2 to 16 times the mass of the Sun and surface temperatures between 10,000 and 30,000 K. [1] B-type stars are extremely luminous and blue. Their spectra have strong neutral helium absorption lines, which ...

7. Water - Wikipedia

   en.wikipedia.org/wiki/Water

   Water resources. Water resources are natural resources of water that are potentially useful for humans, [103] for example as a source of drinking water supply or irrigation water. Water occurs as both "stocks" and "flows". Water can be stored as lakes, water vapor, groundwater or aquifers, and ice and snow.