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2. 4 DIY Air Conditioners That Actually Work - AOL

   www.aol.com/4-diy-air-conditioners-actually...

   A styrofoam cooler makes a great DIY air conditioning box, as the holes are easy to cut and the coolers are cheap to buy. This video demonstrates how cool the air being circulated can be.

3. Pot-in-pot refrigerator - Wikipedia

   en.wikipedia.org/wiki/Pot-in-pot_refrigerator

   A pot-in-pot refrigerator, clay pot cooler [1] or zeer (Arabic: زير) is an evaporative cooling refrigeration device which does not use electricity. It uses a porous outer clay pot (lined with wet sand) containing an inner pot (which can be glazed to prevent penetration by the liquid) within which the food is placed.

4. Cryogenic storage dewar - Wikipedia

   en.wikipedia.org/wiki/Cryogenic_storage_dewar

   A self-pressurising dewar (silver) being filled with liquid nitrogen from a larger storage tank (white). A cryogenic storage dewar (or simply dewar) is a specialised type of vacuum flask used for storing cryogens (such as liquid nitrogen or liquid helium), whose boiling points are much lower than room temperature.

5. Styrofoam - Wikipedia

   en.wikipedia.org/wiki/Styrofoam

   Styrofoam has a variety of uses. Styrofoam is composed of 98% air, making it lightweight and buoyant. [6] DuPont produces styrofoam building materials, including varieties of building insulation sheathing and pipe insulation. The claimed R-value of styrofoam insulation is approximately 5 °F⋅ft 2 ⋅h/BTU for 1 inch thick sheet. [7]

6. Igloo Products - Wikipedia

   en.wikipedia.org/wiki/Igloo_Products

   The company was founded in 1947 in Katy and is known for its blue and white coolers. [ citation needed ] Igloo's product line includes a wide range of coolers and ice chests for various uses, from small personal coolers to large commercial coolers, as well as beverage dispensers, marine coolers, and accessories.

7. Firefighting foam - Wikipedia

   en.wikipedia.org/wiki/Firefighting_foam

   Firefighting foam is a foam used for fire suppression. Its role is to cool the fire and to coat the fuel, preventing its contact with oxygen, thus achieving suppression of the combustion. Firefighting foam was invented by the Moldovan engineer and chemist Aleksandr Loran in 1902. [1] The surfactants used must produce foam in concentrations of ...