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2. Absorption refrigerator - Wikipedia

   en.wikipedia.org/wiki/Absorption_refrigerator

   Common absorption refrigerators use a refrigerant with a very low boiling point (less than −18 °C (0 °F)) just like compressor refrigerators.Compression refrigerators typically use an HCFC or HFC, while absorption refrigerators typically use ammonia or water and need at least a second fluid able to absorb the coolant, the absorbent, respectively water (for ammonia) or brine (for water).

3. Pentode - Wikipedia

   en.wikipedia.org/wiki/Pentode

   The suppressor grid is usually operated at or near the potential of the cathode and prevents secondary emission electrons from the plate from reaching the screen grid. [ 4 ] [ 5 ] The addition of the suppressor grid permits much greater output signal amplitude to be obtained from the plate of the pentode in amplifier operation than from the ...

4. Water distribution system - Wikipedia

   en.wikipedia.org/wiki/Water_distribution_system

   An example of a water distribution system: a pumping station, a water tower, water mains, fire hydrants, and service lines [1] [2]. A water distribution system is a part of water supply network with components that carry potable water from a centralized treatment plant or wells to consumers to satisfy residential, commercial, industrial and fire fighting requirements.

5. US manufacturing contraction slows in November, outlook uncertain

   www.aol.com/news/us-manufacturing-improves...

   WASHINGTON (Reuters) -U.S. manufacturing contracted at a moderate pace in November, with orders growing for the first time in eight months and factories facing significantly lower prices for inputs.

6. Solar-powered refrigerator - Wikipedia

   en.wikipedia.org/wiki/Solar-powered_refrigerator

   A solar-powered refrigerator is a refrigerator which runs on energy directly provided by sun, and may include photovoltaic or solar thermal energy. Solar-powered refrigerators are able to keep perishable goods such as meat and dairy cool in hot climates and are used to keep much-needed vaccines at their appropriate temperature to avoid spoilage.

7. South Florida rings in Christmas with 5OT win in Hawaii Bowl

   www.aol.com/sports/south-florida-rings-christmas...

   USF got the win despite being outgained 441-291 and gaining only 1.6 yards per rush. Its biggest plays came on special teams and defense, including a 93-yard kick return touchdown by Ta'Ron Keith ...