Windspeeds of 70mph are not really excessive on Mars.
The Mariner probes detected a typical wind speed of 125mph and gusts of 300-375mph. (source)
The reason that these winds are never mentioned is that the atmosphere is so thin (0.75% of the density of Earth's) so they don't have that much force behind them.
The images are not recoloured. It is simply a product of swapping the red channel for an infra-red channel as NASA often does.
This graph shows the reflectance of each of the colours on the calibration target. Notice how the blue target relects infra-red light in the region of 400-500mm.
When taking most science photos, more often than not they use the infra-red filter. When putting together pictures for the press they use the infra-red channel rather than red. The upshot of this is that particular blues reflect strongly in infra-red and come out in the final picture as red.
You can see a wonderful example in this picture which shows the blue insulation tape as pink, and the usually blue NASA logo as red.
They're not modifying the images, just using the filters most useful for science applications.
If a user downloads and runs a malicious executable then that could easily install a Firefox extension bypassing the XPI whitelisting functionality.
This could be used for all sorts of nasty things such as homepage hijacking and redirecting search results through sponsored sites.
It would be easy to remove these however using the extensions menu, but I believe that even that may be too complex for the average user to grasp (especially those who would get caught out in the first place).
Re:It's due to bandwidth and transmit time mostly.
on
Titan Photos and Sounds
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· Score: 2, Informative
Venera 14 was built to last 30 minutes but apparently lasted for 120 minutes on the surface before the probe was destroyed due to intense heat and pressure. Huygens had a window of 90 minutes for transmitting data and actually lasted for over 120 minutes. I don't know the data rate of Venera 14, but I'd imagine that it was less than that of Huygens.
The first released picture is on
Wikipedia. This is an unprocessed raw image.
EAS reported that 350 pictures have been received and more will be released later.
Slashdot Mirror
The eye has a maximum contrast ratio of 1,000,000:1. There may be little perceptable difference between the two, but the closer the better.
Windspeeds of 70mph are not really excessive on Mars.
The Mariner probes detected a typical wind speed of 125mph and gusts of 300-375mph. (source)
The reason that these winds are never mentioned is that the atmosphere is so thin (0.75% of the density of Earth's) so they don't have that much force behind them.
The images are not recoloured. It is simply a product of swapping the red channel for an infra-red channel as NASA often does.
This graph shows the reflectance of each of the colours on the calibration target. Notice how the blue target relects infra-red light in the region of 400-500mm.
When taking most science photos, more often than not they use the infra-red filter. When putting together pictures for the press they use the infra-red channel rather than red. The upshot of this is that particular blues reflect strongly in infra-red and come out in the final picture as red.
You can see a wonderful example in this picture which shows the blue insulation tape as pink, and the usually blue NASA logo as red.
They're not modifying the images, just using the filters most useful for science applications.
http://www.linuxjournal.com.nyud.net:8090/article/ 7403
Actual advert here: http://enterprisefans.com/ad/final.pdf
If a user downloads and runs a malicious executable then that could easily install a Firefox extension bypassing the XPI whitelisting functionality.
This could be used for all sorts of nasty things such as homepage hijacking and redirecting search results through sponsored sites.
It would be easy to remove these however using the extensions menu, but I believe that even that may be too complex for the average user to grasp (especially those who would get caught out in the first place).
Venera 14 was built to last 30 minutes but apparently lasted for 120 minutes on the surface before the probe was destroyed due to intense heat and pressure. Huygens had a window of 90 minutes for transmitting data and actually lasted for over 120 minutes. I don't know the data rate of Venera 14, but I'd imagine that it was less than that of Huygens.
The first released picture is on Wikipedia. This is an unprocessed raw image. EAS reported that 350 pictures have been received and more will be released later.