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Originally posted by Yoda411
Originally posted by RFBurns
The L1/L2 and L7 filters, along with the R1 through R7 filters, provide a very good means to identify chemical elements and their composition within the geology of the planet by looking at them in these spectral ranges. Normal visible ranges dont give us enough information as the IR bands and UV bands can provide.
If the filters do such an awesome job with identification of chemical elements, than what was the need for the scoop and portable mineral test lab that was attached to the craft?
Could we not have used that weight/solar power for the HD imagery as Phage has mentioned?
Originally posted by Yoda411
Could we not have used that weight/solar power for the HD imagery as Phage has mentioned?
Originally posted by Phage
reply to post by RFBurns
Again, I think it's a practical consideration. Narrow bandpass filters aid mineral identification in the visible wavelengths as well and UV and infrared. Wide band filters are not as useful.
Decisions. Add this, dump that. There wasn't room for it all. Ah, what's three more filters? Well, three more pieces of glass (or whatever), a larger wheel, more weight, a little more power to turn the wheel.
[edit on 12/15/2008 by Phage]
Originally posted by RFBurns
Well considering the price at 15-20 mil for each mission, adding another 200 thou to add wider filters, and no you dont need a bigger filter wheel for that, you simply put widebandwidth filters where the narrow bandwidth filters are, and its easier to cut bandwidth data from a wide set than it is to try to get wide from narrow at the end, so that really is a mute point about a bigger filter wheel with the added weight and room and more power issue Phage. You know darn well that with algorithyms at the end point, its far easier to narrow spectral response curves from wide response curves than it is to go the opposite direction. If it was easy to go in reverse, then right now we could get true color from those narrow filters!!
Cheers!!!!
Originally posted by RFBurns
Did NASA take a public vote and come to the conclusion that the public voted to spend 20 million on a rover mission just for science and the select few?
If they did, Id like to see it.
Cheers!!!!
[edit on 15-12-2008 by RFBurns]
Originally posted by RFBurns
Curious...wiith all that radiation on Mars...one would think that the wire harnesses and especially the connectors, would be a bit more shielded, like perhaps in braided wire tubing and grounded shields around the connectors. Think of all that dust out there! Heck its hard to keep the dust from my computer's vent holes every week, I can imagine how much dust might get into these connectors and wires!!
Originally posted by Phage
Originally posted by RFBurns
Curious...wiith all that radiation on Mars...one would think that the wire harnesses and especially the connectors, would be a bit more shielded, like perhaps in braided wire tubing and grounded shields around the connectors. Think of all that dust out there! Heck its hard to keep the dust from my computer's vent holes every week, I can imagine how much dust might get into these connectors and wires!!
It's all been working pretty damn well for almost 5 years now. I don't think they picked the parts up at CompUSA.
Originally posted by sadisticwoman
I don't really understand why anyone cares. So they used a bit of photoshop!
Could someone explain why it's such a big deal?
My stance remains that Mars is a red planet, and I do not believe NASA would intentionally change the color of the surface of a planet. They would be risking exposure years down the road.
Originally posted by Phage
Originally posted by RFBurns
Curious...wiith all that radiation on Mars...one would think that the wire harnesses and especially the connectors, would be a bit more shielded, like perhaps in braided wire tubing and grounded shields around the connectors. Think of all that dust out there! Heck its hard to keep the dust from my computer's vent holes every week, I can imagine how much dust might get into these connectors and wires!!
It's all been working pretty damn well for almost 5 years now. I don't think they picked the parts up at CompUSA.
Originally posted by Yoda411
Good point Phage.
Originally posted by Yoda411
As for the issue of Hard Disk space if they had attached an HD Digital Camera - are you arguing that the MRA panoramic pictures (7 slides for 1 colored picture) do not take up a massive amount of hard disk space?
It seems even a 2 Mega Pixel camera such as the extremely tiny ones used in modern cell phones would help in determining the accuracy of the colored MRA photography. Even if modern day geologists use this professional MRA photography on Earth - who is to say it will work the same way with the different atmospheric conditions on Mars?
Originally posted by Yoda411
Edit: My stance remains that Mars is a red planet, and I do not believe NASA would intentionally change the color of the surface of a planet. They would be risking exposure years down the road.
Originally posted by RFBurns
And if mars is just RED as you say, then what do we need RGB for? What do we need 14 filters for to see ONE color???
Originally posted by Yoda411
Now your just being ignorant. I'll still stoop to your level and rephrase the statement.
The mineral compounds which make up the outer layer of the planet mars is red in appearance. Not the awkward color you composed using your method.