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Look buddy... It's not my fault if you don't want to read the article. You have consistently dismissed the idea of optics, lenses, and distortion as irreverent. Yet you continue to ask "why can you see space around the Earth?". And we continue to tell you, over and over, fish eye lenses are the answer.
originally posted by: WaxingGibbons
a reply to: DrWily
Show were he discusses a pic from the cupola showing a perfect sphere with space around it. If you can't then how does it apply?
n order for the full face of the Earth to be impossible to photograph with a fish eye lens, it would have to be concave, and the ISS suspended right in the middle of the depression. That, of course, is ludicrous, because were it the case, then there would be no horizon. To stand on the center of the Earth would be like standing in the middle of a skate bowl.
Images of the earth may seem commonplace, but there are actually very few pictures of the entire planet. The problem, Simmon said, is all the NASA earth-observing satellites are in low-earth or geostationary orbit, meaning none of them are far enough away to see a full hemisphere. The most familiar pictures of the entire Earth are from the 1960s and 1970s Apollo missions to the moon.
originally posted by: WaxingGibbons
a reply to: elephantstone
NASA themselves say it is not possible because you are not high enough.
originally posted by: WaxingGibbons
a reply to: TrueBrit
n order for the full face of the Earth to be impossible to photograph with a fish eye lens, it would have to be concave, and the ISS suspended right in the middle of the depression. That, of course, is ludicrous, because were it the case, then there would be no horizon. To stand on the center of the Earth would be like standing in the middle of a skate bowl.
It is impossible with any lens from 400 km. I proved it on page one, but this is what your precious NASA says.
Images of the earth may seem commonplace, but there are actually very few pictures of the entire planet. The problem, Simmon said, is all the NASA earth-observing satellites are in low-earth or geostationary orbit, meaning none of them are far enough away to see a full hemisphere. The most familiar pictures of the entire Earth are from the 1960s and 1970s Apollo missions to the moon.
Give it up.
Until you quote this, you're probably misunderstanding it.
The last time anyone took a photograph from above low Earth orbit that showed an entire hemisphere (one side of a globe) was in 1972 during Apollo 17. NASA’s Earth Observing System (EOS) satellites were designed to give a check-up of Earth’s health. By 2002, we finally had enough data to make a snap shot of the entire Earth. So we did. The hard part was creating a flat map of the Earth’s surface with four months’ of satellite data. Reto Stockli, now at the Swiss Federal Office of Meteorology and Climatology, did much of this work. Then we wrapped the flat map around a ball. My part was integrating the surface, clouds, and oceans to match people’s expectations of how Earth looks from space. That ball became the famous Blue Marble.
Images of the earth may seem commonplace, but there are actually very few pictures of the entire planet. The problem, Simmon said, is all the NASA earth-observing satellites are in low-earth or geostationary orbit, meaning none of them are far enough away to see a full hemisphere. The most familiar pictures of the entire Earth are from the 1960s and 1970s Apollo missions to the moon.
originally posted by: DrWily
a reply to: WaxingGibbons
It's not fake... This picture comes directly from NASA:
www.nasa.gov...
Like I said before, by looking out the side windows (which are angled differently than the central window), it's possible to see the edges of the Earth. With a fish eye lens, you can capture light from all 7 windows, producing a distorted image that APPEARS to be a full view of the Earth. It's actually capturing light coming from 7 different directions.
"The last time anyone took a photograph from above low Earth orbit that showed an entire hemisphere (one side of a globe) was in 1972 "