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2. Thermal insulation - Wikipedia

   en.wikipedia.org/wiki/Thermal_insulation

   In order to accomplish small gas cell formation in man-made thermal insulation, glass and polymer materials can be used to trap air in a foam-like structure. This principle is used industrially in building and piping insulation such as , cellulose, rock wool, polystyrene foam (styrofoam), urethane foam, vermiculite, perlite, and cork. Trapping ...

3. R-value (insulation) - Wikipedia

   en.wikipedia.org/wiki/R-value_(insulation)

   For comparison, phenolic foam insulation has a k-value of around 0.018 W/(m⋅K), [23] while wood varies anywhere from 0.15 to 0.75 W/(m⋅K), and steel has a k-value of approximately 50.0 W/(m⋅K). These figures vary from product to product, so the UK and EU have established a 90/90 standard which means that 90% of the product will conform to ...

4. International Association of Heat and Frost Insulators and ...

   en.wikipedia.org/wiki/International_Association...

   The International Association of Heat and Frost Insulators and Allied Workers (AWIU or Insulators) is a trade union in the United States and Canada, founded in 1903.It is affiliated with the AFL–CIO and the Canadian Labour Congress and the North America's Building Trades Unions.

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6. News, Politics, Sports, Mail & Latest Headlines - AOL.com

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7. Solar panel - Wikipedia

   en.wikipedia.org/wiki/Solar_panel

   [93] [94] A 2015 study shows price/kWh dropping by 10% per year since 1980, and predicts that solar could contribute 20% of total electricity consumption by 2030, whereas the International Energy Agency predicts 16% by 2050. [95] Real-world energy production costs depend a great deal on local weather conditions.

8. History of the United States (1991–2016) - Wikipedia

   en.wikipedia.org/wiki/History_of_the_United...

   Oil prices tripled after 2002, peaking at $147 in July 2008, about $4 a gallon; the price has continued to fluctuate widely. [169] The theme of "energy independence" led to legislation mandating more fuel efficient autos—even electric vehicles—and more efficient use of energy, ranging from insulation to new light bulbs. Even worse than the ...