earth-moon line 中文意思是什麼
earth-moon line
解釋
地月線-
The full moon is along the earth-sun line but on the opposite side of the earth.
滿月時，月球在地球與太陽的連線上，但它是在地球的背面。 -
However, the moon s path is tilted about 5 to the ecliptic, making the alignment of the sun, the earth and the moon in a straight line a relatively rare case. only when the sun and the moon are close enough to the nodes crossing points of the ecliptic and the moon s paths during full moon, a lunar eclipse can occur
要注意的是，由於太陽和月球在天空的軌道稱為黃道和白道並不在同一個平面上，而是有約5度的交角，所以只有太陽和月球分別位於黃道和白道的兩個交點附近，才有機會連成一條直線，產生月食。 -
In newtonian mechanics, we say the moon is attracted by the earth, so it orbits around the earth. in the theory of general relativity, we will say the earth affects the spacetime around it, thus the moon is no longer moving in a straight line, instead it goes around the earth. just like a marble will not move in a straight line on an uneven table
牛頓力學認為月球繞地球旋轉，是因為月球受到地球引力的吸引但廣義相對論的說法則是地球的質量扭曲了附近的時空，月球在不平坦的時空以最自然的方式運行，結果走出了一條繞著地球轉的曲線，情況就如彈珠在不平坦的地面走，會左搖右擺一樣。 -
If the earth was not there, the moon would travel in a straight line, that is, fly away. the earth and the moon attract each other, so the moon falls to the earth, just like a pen does
由於地球和月球互相吸引，月球便向地球靠攏，月球不斷向地球方向落下，而落下的距離剛好和月球飛離地球的距離抵銷，結果月球便能夠以接近圓形的軌道繞著地球運行。 -
Tidal variations are mainly caused by the gravitational attractions of the moon and the sun. near new moon or full moon each month, the earth, moon and sun are aligned along a straight line and the sea - level rise and fall will have a larger range. this is called a spring tide
潮汐變化主要受月球和太陽的引力影響，每月的新月或滿月前後，地球月球和太陽三者連成一線，水位會升得特別高和降得特別低，這現象稱之為大潮或天文大潮。 -
Parallax is a geometric effect : at the surface of the earth we are offset from the line through the centers of earth and moon, and because of this we can observe a bit ( about 1 ) more around the side of the moon when it is on our local horizon
視差是幾何學的效果:在地球的表面，我們透過地球和月亮的中心被從線彌補，而且因為這當它在我們的當地地平線上的時候，我們能觀察一點在月亮的邊周圍的更多。
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