銀星砂 星之生活 | Starlife @ Stardust Sand

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[2006-11-06]

再見海王星


完成了一個海王星的講座
但我忘記了在總結時跟海王星說再見..

記得當初認識海王星是來自一本世界地圖
當時的海王星只是畫上去的
這也是當時唯一可以做的
因為海王星距離太遠,當時無人知道海王星是什麼樣子

中一那年的下半年,1993年
參加了當時中學的天文學會活動到香港太空館參觀
因為學會幹事的大意,參觀太空館時不是看天象節目
而是看「非洲大草原」...

但我在詢問處拿了很多單張
其中一張是當時天象節目「航行者之旅」的單張

就是這一張單張
我第一次看到海王星

第一次看到這顆海藍色星球
當時的感覺是著迷的
即使至今還記得

從未看過一顆如此美麗的星球
縱然土星也比下去

以前沒有互聯網
訊息較現在落後
加上中文書跟不上時代的步伐
即使航行者2號在1989年飛掠海王星
我也從未接觸過航行者

就是這樣
因為這張「航行者之旅」的單張
我知道了天王星的樣子
和海王星的樣子

就是這樣
自中一起
我愛上了航行者
愛上了海王星

當年
我把單張中的木星、土星、天王星和海王星剪了下來
貼在我床上的天花板

至今依然健在
每天都會見到他們
一直至今
十三年

 

十三年後可以講一個「海王星」的講座
真的很榮幸

早前讀著Miner的Neptune
當中的一點一滴
都很入心
尤其是航行者的故事

即使航行者是多年前的太空計劃
但他的前無古人的成就
無論到何時也是不能取替的

本來打算在講座終結時
以一張航行者告別海王星的相片作結
可是因為我太匆忙而忘記了

那唯有在這

再見海王星




[2006-11-06]

Day and Night on an Extrasolar Planet


上星期 Science 的 cover story -
"Day and Night on an Extrasolar Planet"

其實早在Oct 12已經online published
在Spitzer網頁早就看過

但到今天才認真去看一看這報導

覺得有點神奇

是神奇

有時
當你停下腳步
細心想一下你已知道的東西
你會發覺很多事情都是不可思議的

Upsilon Andromedae b
距離我們44光年的系外行星
我們居然可以坐在地球上便知道這顆星球的日與夜的溫度
不可思議

至今已發現超過200顆系外行星
這顆Upsilon Andromedae b的日夜溫差
有1400度
不可思議

更不可思議的
是我可以知道這些不可思議的事

不可思議


:: Link




[2006-10-25]

From The Earth To The Moon 1-6


We choose to go to the Moon.
We choose to go to the Moon.
We choose to go to the Moon in this decade and do the other things, not because they are easy, but because they are hard.

-- President John F. Kennedy

***********************************

終於買了From The Earth To The Moon 的DVD,
相隔多年,再次重溫這套經典
但仍無法掩蓋心中的激動

暫時看了第1-6集 (共12集,每集1小時)

實在有點失控
無論重看多少次
只有一次比一次的激動

如果沒有Kennedy,就沒有今天的成就
雖然在位短短三年,但Kennedy實現了人類對征空的夢想
真的很想說聲多謝

劇中很多很多的對話都很touching
很多很多的片段也是

想說,
真的
上下一心的登月之旅
是多少人花盡血、汗、淚建成的夢
這個夢是屬於全人類的
絕對不容許踐踏

*************************************

Apollo 1 慘劇聽證會的真情對話...

Significance of Apollo 7 & 8

Making of LEM

and the Moon Landing of Apollo 11...

**************************************

The men in this room will be making moon landings.

Two of you will be first.

I don't know which two that will be.

But I do know that the first man to walk on the moon walked into this room today and he's looking at me right now.

***************************************

"What caused the fire?"

A failure of imagination.

We've always know there was the possiblity of fire in a spacecraft. But the fear was that is would happen in space when you're 180 miles from terra firma and the nearest fire station. That was the worry.

No one ever imagined that it would happen on the ground.

If anyone had, the test would have been classified as hazardous.

But it wasn't. We just didn't think of it.

Whose fault is that?

It's North American's fault.
It's NASA's fault.
It's the fault of every person who ever worked on Apollo.
It's my fault.

I didn't think the test was hazardous.

No one did.

I wish to God we had.

"Now, before we all go home, is there any statement you personally would like to make?"

I think I'm safe in speaking for all the astronauts when I say that
we're confident in our management
we're confident in our training
in our engineering and in ourselves.

The real question is,
are you confident in us?

"What do you think we should do?"

I think you should stop this witch hunt
and let us go to the Moon.

**************************************

We all understand that the astronauts' lives are in our hands.

We never forget that.

Ever.

**************************************

"One cloud is enough,
to eclipse all the sun..."
Thomas Fuller

Michael Collins: And we've got a telegram here from a Mrs. Valerie Pringle. I'm sure it's not a name that any of you recognize, it's just something that one of the Public Affairs people picked up 'cause he liked it. Mrs. Pringle writes, very simply, "You saved 1968."

"When it is dark enough,
you can see the stars..."
Charles A. Beard

**************************************

When I said goodbye to LEM 3, I felt like a proud parent watching a child go off to college.

As I say goodbye to this LEM, I feel like a parent of centuries past saying farewell as his child embarks for the New World.

To some people, that might sound like I'm stretching the point.

A LEM is not a child, it's a machine and a machine doesn't have a soul.

We may yell at our toasters and name our cars but in the end even a LEM is just a collection of wires and circuits and nuts and bolts.

I don't know.

I think each LEM does have a soul.

It's a soul of all the people who built her
designed her
first dreamed of her.

"What number is this one?"

"This one is LEM 5."

"And this is the actual machine that's gonna land on the moon?"

"Yep."

"What are they calling this one?"

"This one --
This one is the Eagle."

**************************************

Liftoff.
We have a liftoff.

**************************************

The date is July 20.

This year: 1969.

If everything goes according to plan an event will take place today that will forever mark the 20th day of the seventh month of the year.

I can guarantee that you'll remember this day where you are and what you are doing.

This is a day mankind has anticipated ever since we first lifted our eyes into the nighttime sky and wondered what marvels wait for us up there on the face of our beautiful, myseterious companion in the cosmos.

Today is the day we find out.

Today is the day we set foot on the Moon.

***************************************

Houston, Tranquility Base here, the Eagle has landed.

***************************************

That's one small step for man, one giant leap for mankind.




Notes from visitors::

2

其實..我一直係香港都唔見有,我呢盒係美國版來ga... 無中文字幕..

by Cheung Sze-leung @ 2006-10-31 01:30 [Homepage]

 
1

我都買左, $$$386.

by CK @ 2006-10-29 22:14


[2006-09-11]

Opportunity Two Years at Meridiani Planum


今期Science的cover story
機遇號於子午平原的兩年

當然,已經不止兩年光景了
雖然只有5頁的Research Article
但是一個很好的Review

機遇號和勇氣號好像被世人遺忘了一樣
新聞沒有報導
就連天文人也好像忽略了它

為何?

子午平原上沉積岩的發現
還不夠石破天驚?

若是對天文熱愛的你
一定要知道機遇號這重要的發現

這輻cover image不是press image
找了很久也只找到不同的Raw Images
合成的圖片仍未找到
若有朋友有,可以告知在下嗎?
感激萬分!


:: Link



[2006-09-10]

地球大進化


上星期,收到了日本寄來的「地球大進化」DVD
實在愛不釋手~
地球的出現,生命的誕生,多次的生命大滅絕,大撞擊、大凍結、大火柱…

生命,根本就是一個傳奇
一幕又一幕的傳奇
久違了的感動…
再一次被天文moved my heart
被感動的感覺,好像已經很久沒有出現過了…

地球由10顆原始地球所合成
金星8顆
水星2顆
火星1顆

40億年前,地球被一顆直徑400km的隕石撞擊
就是之前youtube那一條片段
地球上的一切吞沒
初形成的生命體躲進海底
幸而沒有完全被滅絕
後來,我們的祖先勇敢地離開海底才有我們的存在

6億年前,全球大凍結
地球變為雪球,溫度-50度
再次,世上90%的生命滅絕
當時世界只有三種生物
也只有一種能演化至現今的生物

2.5億年前,出現大火山爆發,高1000km的大火柱
再次令世界上95%的物種消失
但也同時衍生出哺乳類動物

多災多難的地球
人類,要經歷多少重的劫難才演化至今

看了DVD的特典,
原來那些電腦動畫的制作是很不可思議的
所以,很應該買一套DVD支持一下

還有,無意間給我發現
原來無線星期日下午都有播

上星期,看返一期News Scientist的調查
居然有40%的美國人不相信進化論...
難以相信...
宗教的禍害真的不淺..



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