Mars pictures.
POSTED BY: oldenglanddry
UPDATED: Saturday, August 13, 2011 16:27
VIEWED: 4504
PAGE 3 of 4
Quote:
Originally posted by Kwicko:Quote:
Originally posted by AURaptor:
Alas, my jab at Congresswoman Sheila Jackson Lee ( D-TX ) went over everyone's head.
Oh well.
Or everyone realizes that you're exactly as "smart" as she is...
How can someone be 'exactly' as smart as another ? Where's your proof for that ? Or are you lying, as you so often do, when you post here ?
" I do not love the bright sword for its sharpness, nor the arrow for its swiftness, nor the warrior for his glory. I love only that which they defend. "
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Quote:
Originally posted by m52nickerson:Quote:
Originally posted by piratenews:
Mars' atmosphere is less than 1% as thick as Earth's, which is not enough CO2 "air" on Mars to slow a parachute, which may be why so many landers crashed officially (or do you really think NASA can't tell the difference between US and Metric?).Quote:
An altitude of 120 km (75 mi) is where atmospheric effects become noticeable during atmospheric reentry of spacecraft. The average atmospheric pressure at sea level is about 1 atmosphere (atm) = 101.3 kPa (kilopascals) = 14.7 psi (pounds per square inch) = 760 torr = 29.9 inches of mercury (symbol Hg).
http://en.wikipedia.org/wiki/Atmosphere_of_Earth
The atmospheric pressure on the surface of Mars varies from around 30 pascals (0.0044 psi) on Olympus Mons's peak to over 1,155 pascals (0.1675 psi) in the depths of Hellas Planitia, with a mean surface level pressure of 600 pascals (0.087 psi), compared to Earth's sea level average of 101.3 kilopascals (14.69 psi), and a total mass of 25 teratonnes, compared to Earth's 5148 teratonnes.
http://en.wikipedia.org/wiki/Atmosphere_of_Mars
You should know that density is different then pressure, and that even with a less dense atmosphere a parachute would just need to be larger.
How many parachutists bail out at 10,000 mph, as required for Mars?
Quote:
With an historic failure rate of 66 per cent, the entry, descent and landing phase of the Mars mission is the most dangerous six minutes of the nearly two-year journey. Because the Mars surface pressure is less than one per cent of Earth’s—not enough to slow a spacecraft down—the engineering challenge is to find a way to slow the Mars lander from its entry velocity that might be in excel of of 19,000 kilometres an hour to zero impact in just six minutes.
http://www.racetomars.ca/mars/article_descent.jsp
http://en.wikipedia.org/wiki/Atmospheric_entry#Successful_atmospheric_
re-entries_from_orbital_velocities
It's certainly an engineering challenge.
And the radiation on Mars is almost as bad as the Moon, which has higher gamma radiation than the surface of the Sun, according to NASA. Even NASA says its impossible for humans to go to Mars.
Space Radiation Too Deadly For Mars Mission AND MOON Says NASA
http://www.space.com/5190-space-radiation-deadly-mars-mission.html
Can People Go to Mars? NO, it's too radioactive
http://science.nasa.gov/science-news/science-at-nasa/2004/17feb_radiat
ion/
http://www.universetoday.com/14979/mars-radiation/
Robots don't like radiation either:
The Fukushima Fuku-Ups Continue: Robot Fail, HoverDrone Fail, Water Decon Fail – OK for Ft Calhoun Spent Fuel Dry Cask To Be Dunked
http://www.infiniteunknown.net/2011/06/25/the-fukushima-fuku-ups-conti
nue-robot-fail-hoverdrone-fail-water-decon-fail-ok-for-ft-calhoun-spent-fuel-dry-cask-to-be-dunked/
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Quote:
Originally posted by AURaptor:
How can someone be 'exactly' as smart as another ? Where's your proof for that ? Or are you lying, as you so often do, when you post here ?
Where's your proof that you were joking when you asked about the flags the astronauts left on Mars? Can you prove you didn't really think Mars and the Moon were the same? Can you prove that I've ever lied?
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Quote:
Originally posted by Kwicko:Quote:
Originally posted by AURaptor:
How can someone be 'exactly' as smart as another ? Where's your proof for that ? Or are you lying, as you so often do, when you post here ?
Where's your proof that you were joking when you asked about the flags the astronauts left on Mars? Can you prove you didn't really think Mars and the Moon were the same? Can you prove that I've ever lied?
You lied when you pretended you didn't go back and add the word " there " to one of your sentences. I posted it once, so proof is already given.
As for the reference to Sheila Jackson Lee's infamous comment on the Mars rover, and the US flag... If you have to have it explained to you, I guess you'll never get it.
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Quote:
Originally posted by AURaptor:
You lied when you pretended you didn't go back and add the word " there " to one of your sentences. I posted it once, so proof is already given.
Couple things: You never proved any such thing, because no such thing ever happened. By your standards, I just proved my claim. ;)
Also, the word you falsely claim I added was "here", not "there". So once again, you're lying.
You really just can't help it, can you?
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Quote:
Originally posted by Kwicko:Quote:
Originally posted by AURaptor:
You lied when you pretended you didn't go back and add the word " there " to one of your sentences. I posted it once, so proof is already given.
Couple things: You never proved any such thing, because no such thing ever happened. By your standards, I just proved my claim. ;)
Also, the word you falsely claim I added was "here", not "there". So once again, you're lying.
You really just can't help it, can you?
How would you know which word you added if you didn't add it, or that there was no proof?
See? You just outed yourself.
Thanks for playing.
( man, you're an easy mark )
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Quote:
Originally posted by oldenglanddry:
The Jews stole all the air and are hiding it in teeeny-tiiny baloons under their beards.
We should stop this venture before we accumulate a Martian debt.
That's what a ship is, you know - it's not just a keel and a hull and a deck and sails, that's what a ship needs.
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Quote:
Originally posted by AURaptor:Quote:
Originally posted by Kwicko:Quote:
Originally posted by AURaptor:
You lied when you pretended you didn't go back and add the word " there " to one of your sentences. I posted it once, so proof is already given.
Couple things: You never proved any such thing, because no such thing ever happened. By your standards, I just proved my claim. ;)
Also, the word you falsely claim I added was "here", not "there". So once again, you're lying.
You really just can't help it, can you?
How would you know which word you added if you didn't add it, or that there was no proof?
See? You just outed yourself.
Thanks for playing.
( man, you're an easy mark )
Gosh, how on Earth could I remember which word you falsely accused me of adding? I mean, it's not like you went on a bitch-fit for about a year whining over it or anything, is it? How could I *possibly* remember...
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Quote:
Originally posted by Kwicko:
Gosh, how on Earth could I remember which word you falsely accused me of adding? I mean, it's not like you went on a bitch-fit for about a year whining over it or anything, is it? How could I *possibly* remember...
I never falsely accused you of adding any word. You did exactly that. And since I had already forgotten, and you didn't, it seems your guilty conscience continues to weigh on you, even to this day.
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Quote:
Originally posted by dreamtrove:Quote:
Originally posted by oldenglanddry:
The Jews stole all the air and are hiding it in teeeny-tiiny baloons under their beards.
We should stop this venture before we accumulate a Martian debt.
That's what a ship is, you know - it's not just a keel and a hull and a deck and sails, that's what a ship needs.
Maybe we can borrow from Mars to pay off our debt!
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