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2. Thermostat - Wikipedia

   en.wikipedia.org/wiki/Thermostat

   A thermostat exerts control by switching heating or cooling devices on or off, or by regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature. A thermostat can often be the main control unit for a heating or cooling system, in applications ranging from ambient air control to automotive coolant control.

3. Owner's manual - Wikipedia

   en.wikipedia.org/wiki/Owner's_manual

   If owners lose their car manual, they can either order a replacement from a dealer, pick up a used one secondhand, or download a PDF version of the manual online. [4] In 2017, IBM released IBM Watson Artificial Intelligence to understand and answer questions in natural driver language. [5] "Ask Mercedes" was the first in a wave of these vehicle ...

4. Troubleshooting - Wikipedia

   en.wikipedia.org/wiki/Troubleshooting

   Troubleshooting is a form of problem solving, often applied to repair failed products or processes on a machine or a system. It is a logical, systematic search for the source of a problem in order to solve it, and make the product or process operational again.

5. Bellini–Tosi direction finder - Wikipedia

   en.wikipedia.org/wiki/Bellini–Tosi_direction...

   This Royal Navy model is typical of B–T goniometers. The two sets of field coils and the rotating sense coil are visible.. A Bellini–Tosi direction finder (B–T or BTDF) is a type of radio direction finder (RDF), which determines the direction to, or bearing of, a radio transmitter.

6. Pennsylvania - Wikipedia

   en.wikipedia.org/wiki/Pennsylvania

   This is an accepted version of this page This is the latest accepted revision, reviewed on 22 February 2025. U.S. state This article is about the U.S. state. For other uses, see Pennsylvania (disambiguation). "Penn." redirects here. For other uses, see Penn. State in the United States Pennsylvania Pennsilfaani (Pennsylvania Dutch) State Commonwealth of Pennsylvania Flag Seal Nickname: The ...

7. List of common misconceptions about science, technology, and ...

   en.wikipedia.org/wiki/List_of_common...

   Using a programmable thermostat's setback feature to limit heating or cooling in a temporarily unoccupied building does not waste as much energy as leaving the temperature constant. Using setback saves energy (5–15%) because heat transfer across the surface of the building is roughly proportional to the temperature difference between its ...