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Trips to Mars in 39 Days?
Universe Today ^ | 10/7/2009 | Nancy Atkinson

Posted on 10/08/2009 3:02:57 AM PDT by Dallas59

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1 posted on 10/08/2009 3:02:57 AM PDT by Dallas59
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To: Dallas59

Cool


2 posted on 10/08/2009 3:16:24 AM PDT by HiTech RedNeck (ACORN: Absolute Criminal Organization of Reprobate Nuisances)
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To: Dallas59

To Mars and back in 78 days, neat.

Too bad Mars does not have much atmosphere. It’s kind of wasteful to have to spend half the voyage braking if there were some other way to achieve the deceleration needed at the end.

The very high speed could spell trouble for the craft if encountering a bit of asteroid or comet dust. I’d want to send the first few to Mars unmanned to make sure it could be safely done.


3 posted on 10/08/2009 3:21:58 AM PDT by HiTech RedNeck (ACORN: Absolute Criminal Organization of Reprobate Nuisances)
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To: HiTech RedNeck
VASIMR at Full Power
4 posted on 10/08/2009 3:55:07 AM PDT by Dallas59
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To: HiTech RedNeck
...to make sure it could be safely done.

The short answer is no. It can't be done safely.
5 posted on 10/08/2009 4:14:13 AM PDT by carumba (The secret of life is honesty and fair dealing. If you can fake that, you've got it made. Groucho)
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To: HiTech RedNeck
Too bad Mars does not have much atmosphere.

Yes too bad that NASA has determined that Mars consists of rocks and dirt. You would think that looking at rocks and dirt could be accomplished by going to any number of places on this planet, and yet taxpayer money keeps getting squandered on sending stuff to mars.

6 posted on 10/08/2009 4:16:15 AM PDT by from occupied ga (Your most dangerous enemy is your own government,)
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To: carumba

Here’s another thing to chew over.

Suppose one of these gets built. Now we have a guided, ultra high speed interplanetary missile, weighing a ton or so, which... could quite well be steered in a U-turn and back onto any site on earth after having achieved some ungodly velocity. Tunguska wherever you want it! Now some of these craft get into the hands of the bad guys. Book of Revelation disasters anybody???


7 posted on 10/08/2009 4:24:17 AM PDT by HiTech RedNeck (ACORN: Absolute Criminal Organization of Reprobate Nuisances)
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To: HiTech RedNeck
So what you're saying is that the first nation to put a heavy enough one of these up in space has unstoppable (from the ground) Space-Hammer technology against any other nation on earth.

Sounds like another reason for the Anglophone nations to get the high ground first.

8 posted on 10/08/2009 4:34:43 AM PDT by agere_contra
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To: agere_contra

Using a Space Hammer could quite possibly be a global suicide scenario because of all the debris it would kick into the atmosphere.


9 posted on 10/08/2009 4:41:41 AM PDT by HiTech RedNeck (ACORN: Absolute Criminal Organization of Reprobate Nuisances)
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To: Dallas59
Plasma, or ion engines uses radio waves to heat gases such as hydrogen, argon, and neon, creating hot plasma. Magnetic fields force the charged plasma

There was a thread yesterday on HAARP which mentioned plasma, magnetic fields and charged ions..........Wonder if there's a connection between the two?

10 posted on 10/08/2009 4:41:47 AM PDT by Hot Tabasco (Who's your Long Legged MacDaddy?)
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To: Hot Tabasco

In that test, a large directional antenna emitting a very high power beam of microwaves into the sky excited a humanly visible aurora-like display in the upper atmosphere.


11 posted on 10/08/2009 4:50:57 AM PDT by HiTech RedNeck (ACORN: Absolute Criminal Organization of Reprobate Nuisances)
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To: HiTech RedNeck

Somehow I don’t think we’re going to beat St Helens on the debris/atmosphere front.


12 posted on 10/08/2009 4:51:39 AM PDT by agere_contra
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To: Dallas59

This theory was tested on the big centrifuge at Johnsville PA in the late 1950s. Dr. Clark a researcher there believed man could reach Mars in 46 hours if he were under constant acceleration for half the trip and deceleration for half. This would subject an astronaut to 2 Gs for the entire trip. Dr. Clark brought his recliner in from home and rode the machine for 24 straight hours and proved it could be tolerated. By the way the building is now under conversion to a museum. If anyone should want to see the monster machine they can check the website www.nadcmuseum.org for details.


13 posted on 10/08/2009 5:05:38 AM PDT by airvet
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To: Dallas59

...of course, it’ll shred a human body to bits moving that fast, but we’re working the bugs out...


14 posted on 10/08/2009 5:43:53 AM PDT by J40000
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To: HiTech RedNeck
I’d want to send the first few to Mars unmanned to make sure it could be safely done.

There is a pretty lengthy list of planetary probes that never made it to Mars.

15 posted on 10/08/2009 6:33:01 AM PDT by Tallguy ("The sh- t's chess, it ain't checkers!" -- Alonzo (Denzel Washington) in "Training Day")
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To: Tallguy

A cursory look shows that the Rooskies had a lot of computer chip problems.


16 posted on 10/08/2009 6:37:30 AM PDT by HiTech RedNeck (ACORN: Absolute Criminal Organization of Reprobate Nuisances)
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To: HiTech RedNeck

The US lost it’s share of probes after the initial Mariner mission. It was getting pretty spooky.


17 posted on 10/08/2009 6:45:58 AM PDT by Tallguy ("The sh- t's chess, it ain't checkers!" -- Alonzo (Denzel Washington) in "Training Day")
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To: HiTech RedNeck

The Earth gets hit with about 400 tons of meteors/day. The space rocks we drop on our enemies don’t have to be megaton range. A guided reentry vehicle with 50 tons of rock would wipe out an underground Iranian nuke facility with minimal damage on the surface.

Dropping a few rocks on the bad guys will not cause “nuclear winter”.


18 posted on 10/08/2009 8:02:17 AM PDT by darth
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To: darth

That’s not the same as 400 1-ton meteors!


19 posted on 10/08/2009 8:20:10 AM PDT by HiTech RedNeck (ACORN: Absolute Criminal Organization of Reprobate Nuisances)
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To: HiTech RedNeck

So you read that Niven book, too?


20 posted on 10/08/2009 8:24:38 AM PDT by T. P. Pole
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