Answer:
Between about 800 and 400 BC
According to the copernicus, the first duty of the astronomer is observation.
What did Copernicus believe?
Nicolaus Copernicus (1473–1543) was a mathematician and astronomer who proposed that the sun was stationary in the center of the universe and the earth revolved around it.
How was Copernicus theory proved?
- Galelio discovered evidence to support Copernicus' heliocentric theory when he observed four moons in orbit around Jupiter.
- Beginning on January 7, 1610, he mapped nightly the position of the 4 “Medicean stars” (later renamed the Galilean moons).
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The westerly wave pattern that is likely to persist for a longer time is <u>meridional.</u>
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The fact is that there isn't an ordinary pattern in relation to witnessing the advent of waves produced by way of wind, hours ago and loads or lots of miles far from the shore. The beginning and the behavior of a swell or institution of waves are not geometrical, mathematical, and completely predictable.
A standing wave sample is a vibrational sample created inside a medium whilst the vibrational frequency of the supply causes meditated waves from one end of the medium to intrude with incident waves from the supply.
Whether longwave or shortwave, by means of far the most commonplace pattern seen in higher air charts are simply plain troughs and ridges. those waves and troughs are considered 'open' as, for the maximum element, there's no closed stream associated with the waves. They may be modern meaning they pass from west to east.
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<em>I would say A, because he did not support nor hate slavery, but wanted to keep the country together.</em>
