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近日收到不少網友意見,指 DCFever.com「吹水閒聊」充斥愈來愈多粗言穢語、人身攻擊、誹謗等不理性討論。作為 一個以攝影興趣為主題的網站,此等漫罵式討論已超出 DCFever.com 設立討論區之原意。DCFever.com 呼籲大家以 攝影交流為目的作理性討論,並正密切留意事態的發展。
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wtfgary




註冊: 2003-03-07

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題目Re: Can we take pictures of the Earth, from on the Earth itself?     Post time: 11 月 9 日

Light travels in staight line. I think it is impossible to take mentioned photo without aerospace equipment.

Unless you can redirect how light travels in the nature.
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Rol




註冊: 2004-09-15

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題目Re: Can we take pictures of the Earth, from on the Earth itself?     Post time: 11 月 9 日

- Why can somebodies take pictures of Black Holes which are supposed to be completely dark?
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I did not studied science but have some interest in astronomy

As I know the picture of black holes is taken by electronic telescope like the wok shape satellite antenna, no optical telescope can see black hole.
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geofku




註冊: 2004-09-23

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題目Re: Can we take pictures of the Earth, from on the Earth itself?     Post time: 11 月 9 日

同聶海勝或者費俊龍借、再唔係上NASA個网都會有。
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wtfgary




註冊: 2003-03-07

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題目Re: Can we take pictures of the Earth, from on the Earth itself?     Post time: 11 月 9 日

"...Unless you can redirect how light travels in the nature.... "

Good lateral thinking. that are what lenses/mirrors are for.
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Yes, technically human can place some lenses/mirrors up there and take your mentioned photo. However, those lenses/mirrors in space would also be considered as aero-space equipment, right ??
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Rol




註冊: 2004-09-15

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題目Re: Can we take pictures of the Earth, from on the Earth itself?     Post time: 11 月 9 日

Then take photo when moon eclipse, when the moon enter the shadow of earth, the missing part on the moon is the shape of the earth.
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geofku




註冊: 2004-09-23

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題目Re: Can we take pictures of the Earth, from on the Earth itself?     Post time: 11 月 10 日

各位大哥大大、
小弟英文好水皮所以都係用中文。首先你身在地球係一定可以影到地球嘅;只不過係影到地球嘅一小部份。但係就算你在月球都只可以影到地球嘅一半(當你見到亞洲時、你一定唔會同時見到美洲)。

多年前有朋友做個 job 就要一張地球嘅相(係圓形、好像從外太空影回來咁樣);當時Yang Li Wei 未上太空、佢又唔識D美蘇嘅太空人、又唔識上 NASA 個网度摷。於是在Studio 試了很多方法;例如影個地球儀之類。最後出街果張係用8mm魚眼鏡向住張方形嘅地圖影出嚟嘅。
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kingkonghk




註冊: 2003-01-27

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題目Re: Can we take pictures of the Earth, from on the Earth itself?     Post time: 11 月 10 日

地球儀同地球唔係絕對一樣, 世界地圖都唔係100%同地球一樣, 唔好混淆, 古時未有太空船, 航海家已經有世界地圖, 點估計我唔識, 不過係事實
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eos1dmark2




註冊: 2005-08-23

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題目Re: Can we take pictures of the Earth, from on the Earth itself?     Post time: 11 月 10 日

地球儀 was present way before the invention of photography wor..
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eos1dmark2




註冊: 2005-08-23

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題目Re: Can we take pictures of the Earth, from on the Earth itself?     Post time: 11 月 10 日

and the 地球儀 or maps were quite accurate...
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