Art can serve a purpose in religious buildings simply in the architecture itself. Also, art can be a constant reminder of one's religious beliefs.
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Nanotechnology, also shortened to nanotech, is the use of matter on an atomic, molecular, and supramolecular scale for industrial purposes.
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They made many discoveries and ways that we use today. We use measures, key signatures and more. They also inspired us to make new sounds.
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I have not yet used this but maybe it will be a good answering source
