冰島的火山和極光
‧本文由 happydog 分享 ‧
2010-06-12 ‧
顯示 3,780 次
‧
轉寄 0 次
‧
短評 0 篇
‧
Volcano and Aurora in Iceland
影像提供: Sigurdur H. Stefnisson
Explanation:
Sometimes both heaven and Earth erupt. In Iceland in 1991, the volcano
Hekla erupted at the same time that auroras were visible overhead. Hekla,
one of the most famous volcanoes in the world, has erupted at least 20 times
over the past millennium, sometimes causing great destruction. The last
eruption occurred only six years ago but caused only minor damage. The green
auroral band occurred fortuitously about 100 kilometers above the erupting
lava. Is Earth the Solar System's only planet with both auroras and
volcanos?
說明:
有時候天與地會同時 上演爆發的場面。場景是1991年的冰島。當極光 現身於頭頂上方的同時, Hekla火山爆發了。身為世界上最著名火山之一的
Hekla火山,在過去一千年來已噴發了至少20次,有時還釀成嚴重的災情。最近一次的爆發僅發生在2年多前,幸而只造成較小的損害。圖中綠色的極光帶非
常偶然地發生在噴發出的熔岩上空約100公里處。一個有趣的問題: 地球是否是太陽系裡唯一同時擁有極光與火山的行星?
資料來源: Scientific American
Department of Physics, NCKU
影像提供: Sigurdur H. Stefnisson
Explanation:
Sometimes both heaven and Earth erupt. In Iceland in 1991, the volcano
Hekla erupted at the same time that auroras were visible overhead. Hekla,
one of the most famous volcanoes in the world, has erupted at least 20 times
over the past millennium, sometimes causing great destruction. The last
eruption occurred only six years ago but caused only minor damage. The green
auroral band occurred fortuitously about 100 kilometers above the erupting
lava. Is Earth the Solar System's only planet with both auroras and
volcanos?
說明:
有時候天與地會同時 上演爆發的場面。場景是1991年的冰島。當極光 現身於頭頂上方的同時, Hekla火山爆發了。身為世界上最著名火山之一的
Hekla火山,在過去一千年來已噴發了至少20次,有時還釀成嚴重的災情。最近一次的爆發僅發生在2年多前,幸而只造成較小的損害。圖中綠色的極光帶非
常偶然地發生在噴發出的熔岩上空約100公里處。一個有趣的問題: 地球是否是太陽系裡唯一同時擁有極光與火山的行星?
資料來源: Scientific American
Department of Physics, NCKU
|
0.00
0 votes
1
3
5
7
9
請按數字進行評分
請以1~9的評分代表由負面到正面的感受,統計數據將決定資訊的參考價值。謝謝!
![]() |
關鍵字建檔說明
|
顯示/隱藏
列印
列印提示
- 您可以點擊右方的「顯示/隱藏」鏈結來隱藏不相關的內容。
- 內容確認後,點擊右方的「列印」鏈結或瀏覽器之列印鍵即可。
- 完成後,顯示被隱藏的內容即可繼續瀏覽。