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Mars Terraforming Not Possible Using Present-Day Technology
NASA ^ | 7/30/18 | Bill Steigerwald / Nancy Jones

Posted on 07/30/2018 3:44:07 PM PDT by LibWhacker

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To: LibWhacker

Start small... if we’re gonna be there anyhow there’s no reason not try.


61 posted on 07/30/2018 9:07:12 PM PDT by GOPJ (https://www.youtube.com/watch?v=U-s1_nfs7f4 STOP https://www.youtube.com/watch?v=O-IsingvI_I)
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To: Flaming Conservative

include the damned Islamics with the commies and you got a deal


62 posted on 07/30/2018 10:39:24 PM PDT by faithhopecharity ( "Politicans aren't born, they're excreted." -Marcus Tillius Cicero (3 BCE))
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To: faithhopecharity

Ok, but they’re not going to let Ocacio-Cortez be president.


63 posted on 07/30/2018 11:02:32 PM PDT by Flaming Conservative ((Pray without ceasing))
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To: BeauBo

Uh, sorry - perhaps my question was unclear: By “where?” what I’m asking is: Where is this 10k Gauss field measured? At the surface of the inflatable generator? (And how big is that generator?)

What I’m getting at is that 10k Gauss would be an incredible field to generate if it was being produced by an electromagnet as “small” as, oh, say, 20 miles in “radiating” diameter. That, I believe, is almost “enough”. (If we assume we only need a field density of 0.1 Gauss at an Earth radius of approximately 3960 miles, then if I calculated inverse-square correctly, that’s almost 16 kGauss @ 10 miles radius.)

This is admittedly easier than shoving a good size moon near to Mars to siphon off water in, oh, say 100 years or so trip time, but, it is still one heck of a magnet...


64 posted on 07/30/2018 11:21:00 PM PDT by Paul R.
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To: LibWhacker

So even trying we can’t increase the greenhouse effect on a planetary scale on Mars. Yet we’re supposed to believe that we’re doing it incidentally on Earth.


65 posted on 07/30/2018 11:26:26 PM PDT by DouglasKC
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To: LibWhacker

While searching the web regarding this, I came across a very interesting (and LONG!) series of articles regarding planetary atmospheric (and other) development, and related subjects.

This is the link for Chapter 11 — sort of a “summary”, I suppose.

http://www.dinosaurtheory.com/rocks_fossils.html

Now, there are some holes in this guy’s theories (aside from some FReepers’ dismissal of Earth’s age and evolution in general — although said FReepers should perhaps read the section about Punctuated Equilibrium. “PE” makes a GREAT deal of sense, though I think the author overstates the case when he says a new species can easily evolve in “a few dozen generations” to adjust to environmental stress. If that were the case, surely by now researchers could have evolved, say, a new species of mouse, and so far as I know, that has not been accomplished?)

I am myself very dubious of the idea that Earth’s atmosphere at the surface was 2/3 the density of water during the era of the dinosaurs, or even “several times thicker” than our present atmosphere as recently as 6 million years ago. The author postulates this would have been mostly due to increased CO2 - I’ve nowhere seen data suggesting such incredible levels of CO2 at any time in the last 500 million years or more.

Moreover, his graph shows Earth’s atmospheric pressures over double those of Venus as recently as 50 million years ago — this is NOT a matter of variations in trace amounts of CO2 — Earth would be hotter than Venus is at present!


66 posted on 07/31/2018 1:02:40 AM PDT by Paul R.
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To: LibWhacker

Thanks!


67 posted on 07/31/2018 3:28:09 AM PDT by Anti-Bubba182
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Comment #68 Removed by Moderator

To: Paul R.; LibWhacker

“Where is this 10k Gauss field measured?”

My reading of the article was that the 10K to 20K Gauss strength of the field would be measured at the generating station, at the L1 point.

They also mentioned that it would be about 1.6 times the strength of Earth’s magnetic field (again I assume, measured at the point of generation).

These were just the results of modeling what the requirements would be for a magnetic shield of Mars. Actually building such a device would be monumental. 20 miles across however, seems actually feasible - like building a Panama Canal in space.

For materials, it would require a huge amount of lift to boost them from Earth, less for Mars, but even less if we could find a suitable asteroid.

They mention an inflatable structure to be used to generate the field, so that seems fundamentally different that the massive metallic magnet which I am envisioning. Perhaps they envision inducing the magnetic field with a huge current, powered by nuclear reactors.

How much electric current do you think it would it require to generate such a field?


69 posted on 07/31/2018 6:59:33 AM PDT by BeauBo
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To: LibWhacker

I thought it was not possible, not a strong enough magnetic field? Or is that de-bunked now?


70 posted on 07/31/2018 7:02:13 AM PDT by afterhoursarmory
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To: Carl Vehse

“where (will) the nitrogen component will come from, if the atmosphere is not to be essentially O2 plus CO2.”

Even if the atmosphere is not breathable by non-genetically modified humans, just having the pressure of an atmosphere could allow people to get around with lighter equipment, like a scuba mask and backpack re-breather, rather than heavier/bulkier dry suit style full pressure suits, like astronauts. It would also ease the design considerations and emergency equipment required to protect against leaks or breaches of buildings on Mars.

As it is, the pressure differential would kill people before they would suffocate. It is almost the vacuum of space - less than 1% of Earth pressure.

More significantly, it might allow open agriculture or forestry, as a method of generating a variety of resources. Crops might need nitrogen, but they might also play a role in sequestering nitrogen - possibly using specially created plants, algae or fungi.

Also, even if the atmosphere is not breathable, it would have a strong effect in moderating the wide daily temperature swings that must be dealt with - currently a 170 degree F daily range on average. Like the pressure, such temperature specs require a whole host of expensive/difficult/dangerous structural design requirements and specialized equipment.

The electromagnetic shield in orbit concept described in other posts, could also reduce one of the other challenging global environmental factors on Mars - radiation.

If temperature, pressure, radiation and moisture were made Earthlike, those would be big steps in easing life support generally.


71 posted on 07/31/2018 7:35:06 AM PDT by BeauBo
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To: faithhopecharity

.
So, you are saying that you do not believe the word of Yehova?

He promises to save us and to destroy the universe.


72 posted on 07/31/2018 9:45:49 AM PDT by editor-surveyor (Freepers: Not as smart as I'd hoped they'd be)
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To: editor-surveyor

He often saves us through, in whole or part, our acts, effort


73 posted on 07/31/2018 9:49:17 AM PDT by faithhopecharity ( "Politicans aren't born, they're excreted." -Marcus Tillius Cicero (3 BCE))
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To: BeauBo

.
Pipe dreams are more realistic than your suggestions.


74 posted on 07/31/2018 9:51:44 AM PDT by editor-surveyor (Freepers: Not as smart as I'd hoped they'd be)
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To: faithhopecharity

.
The only personal effort that contributes to our salvation is belief. (IOW faithful obedience to Torah, as explained by James)

All else is “filthy rags.”
.


75 posted on 07/31/2018 9:55:19 AM PDT by editor-surveyor (Freepers: Not as smart as I'd hoped they'd be)
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To: editor-surveyor

As you say, James. — Please See James 2:14–26. Thank you. ——————————————————————————————————-James 2:14-26 New King James Version (NKJV)

Faith Without Works Is Dead
14 What does it profit, my brethren, if someone says he has faith but does not have works? Can faith save him? 15 If a brother or sister is naked and destitute of daily food, 16 and one of you says to them, “Depart in peace, be warmed and filled,” but you do not give them the things which are needed for the body, what does it profit? 17 Thus also faith by itself, if it does not have works, is dead.

18 But someone will say, “You have faith, and I have works.” Show me your faith without [a]your works, and I will show you my faith by [b]my works. 19 You believe that there is one God. You do well. Even the demons believe—and tremble! 20 But do you want to know, O foolish man, that faith without works is [c]dead? 21 Was not Abraham our father justified by works when he offered Isaac his son on the altar? 22 Do you see that faith was working together with his works, and by works faith was made [d]perfect? 23 And the Scripture was fulfilled which says, “Abraham believed God, and it was [e]accounted to him for righteousness.” And he was called the friend of God. 24 You see then that a man is justified by works, and not by faith only.

25 Likewise, was not Rahab the harlot also justified by works when she received the messengers and sent them out another way?

26 For as the body without the spirit is dead, so faith without works is dead also.”


76 posted on 07/31/2018 10:13:35 AM PDT by faithhopecharity ( "Politicans aren't born, they're excreted." -Marcus Tillius Cicero (3 BCE))
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To: editor-surveyor

As you say, James. — Please See James 2:14–26. Thank you. ——————————————————————————————————-James 2:14-26 New King James Version (NKJV)

Faith Without Works Is Dead
14 What does it profit, my brethren, if someone says he has faith but does not have works? Can faith save him? 15 If a brother or sister is naked and destitute of daily food, 16 and one of you says to them, “Depart in peace, be warmed and filled,” but you do not give them the things which are needed for the body, what does it profit? 17 Thus also faith by itself, if it does not have works, is dead.

18 But someone will say, “You have faith, and I have works.” Show me your faith without [a]your works, and I will show you my faith by [b]my works. 19 You believe that there is one God. You do well. Even the demons believe—and tremble! 20 But do you want to know, O foolish man, that faith without works is [c]dead? 21 Was not Abraham our father justified by works when he offered Isaac his son on the altar? 22 Do you see that faith was working together with his works, and by works faith was made [d]perfect? 23 And the Scripture was fulfilled which says, “Abraham believed God, and it was [e]accounted to him for righteousness.” And he was called the friend of God. 24 You see then that a man is justified by works, and not by faith only.

25 Likewise, was not Rahab the harlot also justified by works when she received the messengers and sent them out another way?

26 For as the body without the spirit is dead, so faith without works is dead also.”


77 posted on 07/31/2018 10:48:21 AM PDT by faithhopecharity ( "Politicans aren't born, they're excreted." -Marcus Tillius Cicero (3 BCE))
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To: SunkenCiv
But it would take a lonnnng time, and a lot of cash.

No problem, just "tax the rich." That solves everything, right?

78 posted on 07/31/2018 10:48:56 AM PDT by colorado tanker
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To: editor-surveyor

Also one of the Martian moons is due to auger in at some point. Not sure which one. That would be a fly in the ointment.


79 posted on 07/31/2018 10:55:40 AM PDT by Empireoftheatom48 (WWG1WGA!)
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To: colorado tanker
Thanks colorado tanker. If we pay for it, it's ours. Period.

There's gold and silver in the asteroids, titanium as well, rare earths -- we should be well on the way to coining US gold/silver currency in space, fabricating ablative-shielded reentry shuttles, and landing a few trillion in US coin. With an unexpectedly low face value.

80 posted on 07/31/2018 10:56:15 AM PDT by SunkenCiv (www.tapatalk.com/groups/godsgravesglyphs/, forum.darwincentral.org, www.gopbriefingroom.com)
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