24h購物| | PChome| 登入
2013-01-01 09:37:05| 人氣342| 回應0 | 上一篇 | 下一篇

有關日食的一些驚人的事實

推薦 0 收藏 0 轉貼0 訂閱站台

有關日食的一些驚人的事實

太陽能日食

圖片來源:Flickr arbyreed

目睹了太陽能或月食的經驗,對於那些喜歡看奇蹟始終是一個非常驚人的。順便說一下你們有多少人親眼目睹最近的2012年5月20日日食發生在昨天嗎?你有沒有想過這種罕見的現象是如何發生?讓我們把一些就可以了。

什麼是日食:

日食發生時,月亮,地球和太陽之間,而旋轉,並阻止太陽的部分或全部。這僅發生在新的月球,它會阻止光線到達地球的太陽。事實上,月球和太陽的結合,所以從地球上看到的太陽是完全不可見的。因為它依賴於太陽的光反映了地球,月亮不會有自己的光,所以它在整個過程中變得黑暗。

Eclipse的類型

全蝕:當太陽被完全隱藏在月亮留下了日冕的背後,是肉眼可見的。

 

環形日食

圖片來源:Flickr maaco

日環食:當太陽和月亮是一致的,但大小的月亮比太陽小一點的,所以它形成了一個圍繞太陽的耀眼光環。

混合Eclipse的:事實上,這是因為它已經在地球上一些特定點相結合的環形和日全食觀測到日環食,而在其他點是觀察日全食。

偏食:當太陽和月亮是不完全符合被部分隱藏背後的月亮和太陽。這是最觀測到的日食,因為它見證了在許多領域,即使在總量和環形日食。

而現在一些驚人的事實,一個人必須知道的日食。

1)在日全食期間,氣溫的地方,在那裡被目擊,可以下降20度以上。

2)北極和南極是唯一的地方不能被觀察到,但日全食,日偏食。

3)日全食持續時間最長的記錄是大約7.5分鐘。

4)每年至少​​2人,最多5日食在地球上可以觀察到。

5)根據許多天文學家,時間在Eclipse期間被認為是不吉利的,他們要求人們不要洗澡,午餐和睡眠日食發生時。

注: 根據美國國家航空航天局表示,不應該看任何形式的部分或全部的日食沒有一些適當的技術和設備,因為它可以導致視網膜燒傷和受害者可能喪失永久的視力。

Some amazing facts about Solar Eclipse

solar-eclipse

Image credit: Flickr arbyreed

Witnessing a Solar or lunar eclipse is always a very stunning experience for those who love to see miracles. By the Way how many of you have witnessed the most recent Solar Eclipse which occurred yesterday on May 20, 2012? Have you ever thought how this rare phenomenon occurs? Let us put some light on it.

What is Solar Eclipse:

A solar eclipse occurs when the moon comes between the earth and sun while revolving, and blocks the sun partially or fully. It occurs only on new moon and it blocks the light of sun to reach the earth. In fact, the moon and the sun are in conjunction as seen from the earth so the sun is completely invisible. The moon does not have its own light because it relies on Sun’s light reflected by earth, so it becomes dark during this whole process.

Eclipse types

Total Eclipse: When the sun is completely hidden behind the moon leaving a solar corona behind that is visible to naked eye.

 

annular-eclipse

Image credit: Flickr maaco

Annular Eclipse: When the sun and the moon are in line but size of the moon is a bit smaller than the sun so it forms a bright ring around the sun.

Hybrid Eclipse: In fact, it is a combination of annular and total eclipse because at some specific points on earth it’s been observed as annular eclipse while on other points it is observed as the total eclipse.

Partial Eclipse: When the sun and the moon are not exactly in line and the Sun is partially hidden behind the Moon. This is the most observed type of Solar eclipse as it is witnessed in many areas even during the total and annular eclipses.

And now some amazing facts about the Solar Eclipse that one must know.

1) During a total Solar Eclipse, the temperature of the places where it is being witnessed, can be dropped by 20 degrees are more.

2) North Pole and South Pole are the only places where the Total Solar Eclipse cannot be observed but the partial solar eclipse.

3) The longest recorded duration of a total solar eclipse is about 7.5 minutes.

4) Annually, minimum 2 and maximum 5 solar eclipses can be observed on the Earth.

5) According to many astronomers, the time during the Eclipse period is considered inauspicious and they ask people to not to take baths, lunch and sleep during the eclipse.

Note: According to NASA, one should not look at any sort of partial or total eclipse without some proper techniques and equipments because it can result in retinal burn and the victim may loss eye sight permanently.

http://www.yesiknowthat.com/some-amazing-facts-about-solar-eclipse/

台長: Aher
人氣(342) | 回應(0)| 推薦 (0)| 收藏 (0)| 轉寄
全站分類: 教育學習(進修、留學、學術研究、教育概況) | 個人分類: 引用 科技 |
此分類下一篇:別讓複雜性成為CE產品殺手
此分類上一篇:NASA:12/21不是世界末日!

是 (若未登入"個人新聞台帳號"則看不到回覆唷!)
* 請輸入識別碼:
請輸入圖片中算式的結果(可能為0) 
(有*為必填)
TOP
詳全文