Mars (Page 5)

LiptonCambell
LiptonCambell: We'll, mars lacks a magnetosphere- which played a role in the loss of the water on it's surface, as the planet could no longer protect it from the radiation blasting it, and it pushed alot of molecules off the planet.

It's believed that Earth's magnetosphere is from heavy metals such as iron sinking into the Earths magma core and spinning rapidly, protecting our planet from the suns deadly rays.

This means the lack of modern volcanic activity on mars is consistent with our observations- mars doesn't have volcanic activity because mars magma core has hardened, which caused it's magnetosphere to stop working.



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duncan124
duncan124:
I don't believe anything thing he says in the video. His story of a magnetic shield defending Mars is something out of the US Starwars program.

If you visit the NASA Surveyor web site there are even stupider things there. They claim that the surveyor spotted seasonal changes at the poles when the Viking explorers have already shown the white polar caps.

Then NASA claims that there might be ' signs ' of water flowing--well what else does it do. If the ice at the poles melts in hot weather then it must flow away! What else could water do in hot weather?

Obviously the water must move about in some way and that of course raises the question of why can't they see clouds? There must have been rain or snow clouds for the ice caps to form.

The US American problems with water supply have clearly reached Mars and stopped the satellites from seeing properly
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Metaverseguy
Metaverseguy: How can they see clouds that were there hundreds of years ago? Maybe evidence in the rocks but we're talking very difficult work. Anyone remember the US govt rejecting petitions to build a Death Star? A comedic week before the whole NSA and Russia thing became an issue. It's too bad those NASA guys haven't inhabited Titan and Mars and maybe another moon. I wonder if there are guys work round the clock or they are busy fundraising and writing books or documentaries or something.

The whole Mars exploration isn't really too necessary and it's good that it's international. Republicans are always complaining that social welfare like social security, unemployment, and food stamps are entitlement and handouts to needy that are wasted when some space satellite that cost billions was worthless after the programmers couldn't convert the metric and US system of distance properly. I'd rather pay higher taxes and see a man walk on the moon, but of course thousands of other programs are top priority and even if someone did plant a flag on Mars Lori would be the first person discrediting the video footage, claiming it was a spoof.
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orangemoon8
orangemoon8: Whenever we get to Mars, it'll be by necessity, We prolly won't have anyone there in our lifetimes.........but we will be there, we have to colonize the Moon first.
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Metaverseguy
Metaverseguy: Some NASA guy recently said colonizing Mars is "essential for humanity." If someone gives it a try I'd be more than willing to check mission updates daily to see how the explorer was doing. Although, it might be better to pay attention sparingly. Investing everything in the colonization and then finding out it was a failure could be like getting shot in the face by buckshot.
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ghostgeek
ghostgeek: I can't see why colonizing Mars is that important. It's not like you'd last very long up there without a space suit. Now, aiming to colonize an Earth like planet orbiting another star, that does seem worthwhile.
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duncan124
duncan124:
A little bit off topic for a Mars thread but the theme today elsewhere...

http://www.youtube.com/watch?feature=player_embedded&v=Qe8KYJzOjok

Colonies and Colonist are just that and it takes emigration for a new place to work.
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Metaverseguy
Metaverseguy: Well, I think putting a man on the moon was one of the biggest accomplishments of humanity. Up there with building the pyramids and great wall. And those took thousands of years to build. Mission to the moon only took a decade. How cool would it be if you could watch a mission to Mars in your life? that experience would be priceless
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ghostgeek
ghostgeek: More than likely you'll see the Chinese hopping around on Mars before you expire Fortran.
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alpossmar82
alpossmar82: I wonder a bout the biodiversity on Mars, does animailia 1/30>1/3 of inch on earth aspire for interplanetary travel.
(Edited by alpossmar82)
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orangemoon8
orangemoon8: People who colonize Mars will be living on hydroponic, aeroponics, and prolly have Greenhouses. they would have to, but i am sure there would have to be place to experiment here before that's done. oh by the way, I'm sure the Chinese will be on the Moon, in a few years.
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duncan124
duncan124: Hydroponics.
 
"The term hydroponics was originally coined in the mid 20th Century. It is a term used to express a technique for growing plants in a soil less medium. The concept of growing plants without soil goes way back in time to our prehistoric past. For example, the mythical Hanging Gardens of Babylon, the much worshipped flooding of the Egyptian Nile and the Floating Gardens of Mexico City are all examples of hydroponics. History, as it always seems to do, has turned full circle and the rebirth of hydroponics is back with us. Approximately 90% of all cut fresh flowers purchased in the UK are hydroponically grown, and an estimated 65% of all fruit and vegetables purchased from your supermarket, again are grown inhydroponics systems under HPS grow lights."

http://www.1-hydroponics.co.uk


"Aeroponics is the process of growing plants in an air or mist environment without the use of soil or an aggregate medium (known as geoponics). The word "aeroponic" is derived from the Greek meanings of aero- (air) andponos (labour). Aeroponic culture differs from both conventional hydroponics, aquaponics, and in-vitro (plant tissue culture) growing. Unlike hydroponics, which uses a liquid nutrient solution as a growing medium and essential minerals to sustain plant growth; or aquaponics which uses water and fish waste, aeroponics is conducted without a growing medium.Because water is used in aeroponics to transmit nutrients, it is sometimes considered a type of hydroponics. "

en.wikipedia.org/wiki/Aeroponics
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duncan124
duncan124:
The atmosphere on Mars would not allow Earth plants to breath as they need oxygen and carbon-dioxide.

So ' greenhouses ' would be used, but that raises the question of how much light Mars receives and if that would be enough for plants to grow?
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LiptonCambell
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duncan124
duncan124:
Wait a minute...what did he say about that chap growing plants in pots of Martian soil?

Doesn't that mean the Curiosity science is crap?

Another moon landing in a Hollywood basement?

Really! If they can't get their minds to grasp ice caps and seasonal changes in the weather then growing things is way beyond them.
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ghostgeek
ghostgeek: As Mars's gravity is only about 38% of that of the Earth I would expect long term habitation of the planet to be deleterious to human health.
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duncan124
duncan124:
In fact lower gravity is supposed to be good for the elderly as it reduces the effort the heart has to make.

What effects lower gravity has on people still growing is not known.

But clearly a space station would be in zero G and so better still.
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orangemoon8
orangemoon8: When our Sun eventually turns into a red giant, we gonna wish we had tried to go to other moons in our solar system, if we hadn't done so already.
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duncan124
duncan124:
Won't that swallow up Mars as well?
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orangemoon8
orangemoon8: A day on Mars is 24 hrs and 37 mins.....there should be enough light, by the way don't they have a time lapse camera of a day on Mars from one of the Viking landers or the rovers that are there now? At Mars equator a day can be 80F...but way below -0 F at night
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orangemoon8
orangemoon8: Moons like Titan and a few around Jupiter, wasn't Jupiter a failed star?......lol, it has alot of moons to choose from.
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duncan124
duncan124:
As the atmosphere is made up of different gases from Earth the thermal characteristics would be quite different from Earth as well.
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duncan124
duncan124:


This video made from the NASAs earlier missions does discuss the water ice on Mars but then goes on to look at the massive landscape features NASAs then sees without making any scientific connection.
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orangemoon8
orangemoon8: They need a rover......a bigger one that can take pics or a live camera and go all the way around the planet, start at one point, and literally go around Mars, then land one at the ice cap, and another one that can go to one point...dig some samples and move on.....
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duncan124
duncan124:
Yeah, something like a tractor.
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