Answer:
Trumpet-like instruments have historically been used as signalling devices in battle or hunting, with examples dating back to at least 1500 BCE. They began to be used as musical instruments only in the late 14th or early 15th century.
Explanation:
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I havent gotten before
Answer: There's no long-distance energy transfer. This looks almost like a plain old transformer (yet with an air core) and I've never heard of a 7 kilowatt transformer wasting as much as 14 percent energy in conversion - dissipating about one kilowatt of power would just melt the transformer. How realistic is the "86% efficiency" claim?
Explanation:
Answer:
You are basically moving your hand. Moving your hand muscle.
Explanation:
We group them by their style and by their time period