How to Demonstrate the Cooling of Expanding Gas?

Answer This article would benefit from step-by-step photos. You can help wikiHow by adding photos to this article. Click here for instructions. Notice added on 2009-02-19.Gas such as air cools as it expan... Read More »

Top Q&A For: How to Demonstrate the Cooling of Expanding Gas

How to Replace a Belt-Driven Cooling Fan With an Electric Cooling Fan?

The shift from engine-powered, belt-driven cooling fans to electric cooling fans came about because of an increasing quest for more power. Engine-driven cooling fans use a lot of the engine power a... Read More »

Difference Between Refrigerated Cooling & Evaporative Cooling?

Staying cool in hot climates requires either a refrigerated air conditioner or an evaporative cooler. The substantive difference between the two appliances is that evaporative coolers use water to ... Read More »

How to Use Expanding Foam?

Use expanding foam to make molds, toys, boat flotation, sound proofing, packaging foam and insulation. Chemically resistant, urethane foam cures or hardens in about three to seven days. When it has... Read More »

How do you know if the universe is collapsing or expanding?

A proper Theory of the Universe is the only way to know. Measurements must be interpreted in the context of a Theory, so measurements themselves like the redshift do not in themselves provide a way... Read More »