aliens
TRANSCRIPT
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981 Sciences via MoviesWeek 11:
Aliens- • Do they exist? • Can we meet them? • Are they good or evil?
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To create an extraterrestrial civilization, you need an inhabitable planet.
Criterion 1: Close but not to close to a sun-like star; so that the temperature is between 0-800C.
r
There are as many as 100 billions of stars in our galaxy.
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Criterion 2: The right mass for trapping an atmosphere
6400Km
100Km
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Criterion 3: Water! Water! Water!
A strike on Moon by NASA last Friday have shown the existence of water.
Dry water channels on Mars
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Why water matters?
energy
CO2
Fuel cell
electricity
Food!
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What about life?
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地球生命的緣起之探索:Miller實驗 1
953模仿磐古大
氣
模仿磐古海
洋
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生命的分子:氨基酸 Amino Acid
Miller 實驗: 1953 產生 5種, 2007 產生 22 種。
大自然中有 22種,生物體中有 20種。
氨基酸序列-
蛋白
質
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Can we meet each other?- The odd of getting a message from ET
http://www.youtube.com/watch?v=kNAUR7NQCLA the introducing scene of Contact (1997)
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100 光年
SETI:Search for ExtraTerrestrial Intelligence無線電波的增加地球在宇宙間的可視度
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不斷擴張
終於可以讓人知道我的存在
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假設 Kennedy 沒處理好「古巴危機」
42 光年
1905 1945 1962
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稍縱即失
當無線電薄殼通過時對方正好有無線電科技才能知道我的存在
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Are aliens good or evil? Benign or malignant?
http://www.youtube.com/watch?v=mYCBgSRNjk0 alien landing, close encounters of the 3rd kind (1977)
Good
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Are aliens good or evil? Benign or malignant?
http://www.youtube.com/watch?v=-c0Myr_sYsE
A trailer of War of the Worlds (2005)Evil
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Are aliens good or evil? Benign or malignant?
http://www.youtube.com/watch?v=ojhGdRSkiUw
A trailer of Alien (1979) Neither
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2001 (1968)http://www.youtube.com/watch?v=c1IPrx-zC1Y
Passage through a wormhole
Contact (1997)http://www.youtube.com/watch?v=-ZhvBkrq6rU
&feature=related
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議題討論:1.假設有一批外星人訪問地球,你認為他們會是良善的或是邪惡的?哪一種可能性較高?為什麼?
2.在不確定外星人意向的情況下,你認為地球人應該如何應對較為安全?(請完成次頁之九宮格後再回答;該九宮格為賽局理論工具,可以助你做決策。)
Game Theory in A Beautiful Mind (2001):http://www.youtube.com/watch?v=l0ywiYboCLk
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外星人是善良的
外星人是邪惡的
外星人不善不惡,但會自我防衛
絕不主動攻擊,但受到攻擊會積極反擊遭受攻擊盡可能不反擊,保持極大克制當發覺他們有不良意圖時,先發制人