Copyright:Wylie Overstreet
原文:
Want to build a scale model Solar System? A blue marble 1.4 centimeters (about half an inch) across would be a good choice for a scale model Earth. Since the Sun is 109 times the diameter of Earth, a 1.5 meter diameter balloon could represent the Sun. But the distance between the Earth and Sun, 150 million kilometers, would translate to just under 180 meters (590 feet) at the same scale. That would mean the completed project, including the orbits of the outer planets, is probably not going to fit in your backyard. Still, you might find enough room on a dry lakebed. Check out this video for an inspirational road trip through the Solar System to scale.
中文翻譯:
想建立一個比例模型的太陽系嗎？如果地球的比例選擇是一顆直徑1.4厘米（大約半英寸）的藍色大理石，那麼太陽將是地球的109倍直徑，1.5米直徑的氣球可以代表太陽。不過，地球和太陽之間的距離150萬公里，換算成比例後約為180米（590英尺）。這意味著整個項目，包括外行星的軌道，可能無法適合在你的後院。不過，你可能會在一個乾燥的湖床上找到足夠的空間。快來看看這段視頻，讓你進行一次充滿靈感的太陽系之旅！
#太陽系模型 #比例模型 #教育 #親子活動 #探索宇宙 #STEM教育 #創意學習
來源:NASA每日圖片
