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Old 08-11-2017, 06:03 PM
 
1,499 posts, read 2,237,158 times
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Quote:
Originally Posted by rbohm View Post
we have already been to the moon, mars is next. and while you may be right about man not stepping onto another spatial body in our lifetime, the mathematics for warp drive has already been done. as for another start system, with current technology, we can get spacecraft of a size needed to get humans to the closest start system in about 28 years, remember that alpha centauri is only four lights years away, and we only need to hit 20% the speed of light to get there in 28 years.
Also fun fact, because of the effects of special relativity and time dilation, if a craft could get really close to the speed of light (say 99.5%), it would seem like just over 4 years to the people on earth, but the occupants on the craft would have only aged about 145 days.

Now, say that craft could reach a speed of 99.99% that of light. That same trip, the occupants would have only aged 21 days. 99.999%? 6 day trip for the occupants. Spooky.

This opens up viability to deep space exploration if the explorers are ok with returning home to a very different earth (and of course where everyone they knew before they left is long dead).

Of course, all of this is waaaay far off still.
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Old 08-11-2017, 07:25 PM
 
26,799 posts, read 20,130,994 times
Reputation: 15126
Quote:
Originally Posted by LKJ1988 View Post
That was 50 years ago joe and even then i am not sure no one stepped on the moon. 4.3 light years would take millions of years to reach with what we have. There will never be a warp drive clive.
silly rhymes dont mean you are right my friend. with the technology we have right now, we could reach 20% the speed of light. ion propulsion makes for a good long distance rocket engine. and that means 28 years to alpha centauri.

as for warp drive, how do you know? as i said the math has already been worked out. we just need for the technology to catch up now. i think you are far too closed minded to be making posts in this thread, but be my guest and make as big a fool of yourself as you can.

Quote:
Originally Posted by Adric View Post
Also fun fact, because of the effects of special relativity and time dilation, if a craft could get really close to the speed of light (say 99.5%), it would seem like just over 4 years to the people on earth, but the occupants on the craft would have only aged about 145 days.

Now, say that craft could reach a speed of 99.99% that of light. That same trip, the occupants would have only aged 21 days. 99.999%? 6 day trip for the occupants. Spooky.

This opens up viability to deep space exploration if the explorers are ok with returning home to a very different earth (and of course where everyone they knew before they left is long dead).

Of course, all of this is waaaay far off still.
all very true. the thing about warp drive though, being as the speed of light is the technical speed limit of the universe, we are going to have to use various tricks to get us past the speed of light, and warp drive is one of those tricks.
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Old 08-11-2017, 07:28 PM
 
Location: Stasis
14,534 posts, read 7,906,713 times
Reputation: 7546
Let's solve the problems of Medieval Europe before discovering America.
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Old 08-11-2017, 07:34 PM
 
Location: the Sticks
4,201 posts, read 1,048,422 times
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Quote:
Originally Posted by Retroit View Post
Martians aren't threatening to kill us. Earthlings are.
How many 13 billion dollar air craft carriers are patrolling our waters to keep us safe?
How many soldiers do we have guarding our borders to keep us safe?
How many planes did the USAF intercept on 911 to keep us safe?
How many Americans are using that 40 million dollar gas station that we built in Afghanistan? How many US cities have a THAAD missile site to keep them safe?
Why are we the only ones who need to spend over 600 billion on our military?
I am all for giving our troops the best weapons money can buy. We owe that to them.
How many Military owned golf courses keep us safe?
How was spending billions bombing Libya and Syria keeping us safe? Yemen?
Parking a carrier battle group of the coast of Lebanon ? Just in case Israel needs a hand? Egypt closes the Suez canal? How is that keeping us safe?
NASA provides us with the latest and greatest technology, national pride, and it isn't screwing with other countries.
As it stands today we can't even put our own people into space.
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Old 08-11-2017, 07:36 PM
 
26,799 posts, read 20,130,994 times
Reputation: 15126
Quote:
Originally Posted by katzpaw View Post
Let's solve the problems of Medieval Europe before discovering America.
its possible that the necessary cooperation between countries to get a mission to mars, and return them home safely, will likely require that at least the major countries, from the US, to china, to russia, to the european countries, will require that they all come together to solve the problems a mission to mars would entail. new technologies, new ways of thinking, mutli national production of space craft, among many other things are going to be necessary.
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Old 08-11-2017, 08:11 PM
 
11,020 posts, read 5,737,377 times
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Money could be spent on more pressing matters, how to feed the hungry and homeless, stopping useless wars, preventing destruction of nations with rampant immigration, etc. etc.
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Old 08-11-2017, 08:34 PM
 
Location: Japan
6,931 posts, read 2,522,370 times
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Quote:
Originally Posted by katzpaw View Post
Let's solve the problems of Medieval Europe before discovering America.
Many lack vision. It's good that they do not always decide things.
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Old 08-11-2017, 10:25 PM
 
Location: Los Awesome, CA
8,270 posts, read 4,083,109 times
Reputation: 3193
Quote:
Originally Posted by Itinerantlocal View Post
This is so stupid, from the time frame of travel to space radiation its just a waste of money. The gov. could not take care of NOLA when it flooded. Now it wants to put someone on a planet that has no air or may not even have water? This is dumb folly.
Let me guess, you're a Republican?
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Old 08-11-2017, 10:48 PM
 
Location: New England
1,553 posts, read 472,352 times
Reputation: 1339
Quote:
Originally Posted by Itinerantlocal View Post
This is so stupid, from the time frame of travel to space radiation its just a waste of money. The gov. could not take care of NOLA when it flooded. Now it wants to put someone on a planet that has no air or may not even have water? This is dumb folly.
If we really must go off earth, the moon makes a lot more sense. Supposedly it has lots of water, and is about a 3 day trip via conventional rocket. Most any abode on another planet will be underground as all terrestrial planets in our solar system have no magnetosphere except for earth. Without a magnetosphere solar winds will kill colonists over a short time. They will need to be shielded from the solar wind.
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Old 08-12-2017, 03:21 AM
 
Location: New Orleans, La. USA
4,847 posts, read 2,098,339 times
Reputation: 1434
Quote:
Originally Posted by Itinerantlocal View Post
This is so stupid, from the time frame of travel to space radiation its just a waste of money. The gov. could not take care of NOLA when it flooded. Now it wants to put someone on a planet that has no air or may not even have water? This is dumb folly.
The US government would have plenty of money for Mars exploration if republicans did not do supply side tax cuts.

GW Bush inherited a balanced federal budget and then turned it into huge deficits and debt growth by giving the richest 1% of Americans trillions of dollars in tax cuts.
Bush Tax Cuts After 2002: June 2002 CTJ Analysis

And now Donald Trump wants to add $20.7 trillion dollars to our national debt in the next 20 years by giving the richest 1% of Americans tax cuts.
https://www.forbes.com/sites/beltway...over-10-years/
https://www.forbes.com/sites/janetno.../#12b4c69965b9


And space exploration is a necessary step for humanity. One day in the future a huge asteroid will hit Earth and end all life on this planet, or energy from a exploding star will hit Earth and end all life on this planet, and one day our sun will cease to exist. And humanity must move to Mars and one day move to a planet around another star to ensure our survival.

And in the near future humans will be able to Terraform Mars so it has a atmosphere hospitable to humans.
https://en.wikipedia.org/wiki/Terraforming_of_Mars

But unfortunately republicans are more concerned about giving the richest 1% of Americans huge tax cuts, than they are planetary exploration and insuring the survival of humanity.
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