評論
打印
Sunspots
太陽黑子
Is every part of the sun equally hot?
太陽的各個部分都一樣熱嗎？
No, they aren't. Some parts are colder than other parts.
不是的。有些地方比其他地方冷。
How do we know that fact?
我們是如何知道這個事實的呢？
Because we can see the evidence.
因為我們看到了證據。
When you look at the sun with dark glasses, you will find black spots on the sun.
你戴墨鏡看太陽時，會看到太陽上有黑點。
These spots are called sunspots.
這些黑點就叫太陽黑子。
Why do the sunspots look black?
為什么太陽黑子看起來是黑色的？
Because their surroundings are too bright.
因為它們的周圍太亮了。
If you look at the sunspot only, they will look very bright.
如果你只看太陽黑子的話，它們看起來非常亮。
But these sunspots are less bright than their surroundings, so they look dark.
但這些太陽黑子要比周圍暗，所以看起來是黑的。
Who found sunspots first?
誰第一個發現了太陽黑子？
Chinese scientists found sunspots for the first time in 28 B.C.
中國科學家在公元前28年第一次發現了太陽黑子。
