Bottled Water

The United States Food and Drug Administration (FDA) regulates bottled water on a national level. Some states have promulgated their own standards for bottled water (Shelton 1994). The FDA has quality standards for bottled drinking water and Good Manufacturing Practice Regulations for processing and bottling all bottled water. These standards and regulations outline in detail the sanitary conditions under which the water is to be obtained, processed, bottled, and tested. They require that water be obtained from sources free from pollution and be of good sanitary quality when judged by the results of bacteriological and chemical analysis. Water bottlers must list the addition of salt and carbon dioxide on their labels.

Solar Stirling Engine Basics Explained

Solar Stirling Engine Basics Explained

The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.

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