Michio Kaku: How to travel to other stars, so unimaginably far away.

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+7 1. stretchpadawan commented 7 years ago

Ahhh. It all comes back to the imagination of Arthur C Clarke
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+10 2. Saxxoo commented 7 years ago

The interesting part is he suggest using the magnetic field of Jupiter to go further out, why not just simply start to colonize the planets we have near us.

Send the nano probes to our nearest planets and have the probes build up a working living place, then have people travel to that planet and so forth onto the next planet.
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-5 3. PuffPuff commented 7 years ago

Not to burst any bubbles here but if we actually manage to build such advanced nano robots why not just make them build bigger and faster ships? If they are able to self replicate that wouldn't be so hard (I think).

If we can do that and get so far, why start so small?
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+6 4. stonedecroze commented 7 years ago

Meh, Star Trek did this already with the Genesis Device.
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+10 5. Sizzlik (admin) commented 7 years ago

#3 Seems you didnt understand the point of the vid..did you? Watch and listen again :)
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+5 6. Sitef commented 7 years ago

A virus needs a cell to replicate .... what will the nanobots do? Use the rocks on the planets to build factories ? Sounds like there is a lot of work left to do, or he just simplified it really much.
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+5 7. Namron7 commented 7 years ago

Why not just base the nano bot on good old RNA and DNA molecules, after all they've been doing replication pretty well for nigh on 3 billion or so years up to now.
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+1 8. LightAng3l commented 7 years ago

Why? What is the point of spreading thous robots?... they are not humans...
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+6 9. xxxLesy commented 7 years ago

#6 There is a huge difference between viruses and nanobots. Viruses inject their "code" into a cell and turn it into a virus factory, but they cannot build anything or replicate by themselves. Nanobots can construct things out of any matter nearby. Habitable planets should contain fairly similar elements as Earth, making it possible for them to construct both structures as well as technology.

#7 I'm not an expert, but it seems to me that nanobots are much smaller and more resilient than an organic cell (to work with RNA and DNA you probably need all the elements of a cell).

#8 First stage of space exploration is to send unmanned probes to examine and analyze the planet. There is only so much we can tell about a planet from light years away. By sending a probe, we can determine if the planet is truly habitable before sending our people on a 50 year long voyage there.
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+3 10. tiggfigg commented 7 years ago

This is sort of like Exploring the Map with sheep on Age of Empires.
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+1 11. slightlyph commented 7 years ago

Looking around at the state of our species, so many injustices and insurmountable ignorance, the prospect of "travel" to another planet or moon seems more the pipe dreams of elitists. It would be best to fix our world before we pollute another.
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+2 12. BeerBoobs commented 7 years ago

i want travel to other stars, and meet t pol, thats my dream O:)
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+2 13. sartre commented 7 years ago

#9 The furthest we have sent anything away from Earth is the Voyager 1 space probe. It has been travelling for a little over 35 years and has managed to go 18,300,000,000 kilometres at a current speed of 17.26 km/sec. At that rate it will take another 57,615 years to reach the expected distance of the nearest star to Earth (Ross 248, which in about 36,000 years' time should be about 3 light years away from us).

The idea of sending a probe to check out a planet and report back is just not realistic.

I'm with #8 on this: nanobots do not achieve any objective of spreading human life through the cosmos. We need better ideas and novel technology.

One thing is sure: the planet will eventually run out of luck and be hit by something from space. It makes sense to, at the very least, have inhabited another planet in our own solar system to increase our survival chances.
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+2 14. mosfet23 commented 7 years ago

Why send anything that has any mass at all, or bother to accelerate it to the speed of light. When you burn something you're converting mass into energy. A sufficiently advanced enough race may figure out how to customize energy so that when it strikes an object, it acts as a catalyst to begin converting that energy back into mass. Perhaps they could then aim that beam of energy out into space at a distance planet. This could just be ignorance on my part but I'd like to believe that converting mass into energy won't always be a one way process.
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+2 15. Unknown commented 7 years ago

2:28 This not the plot for 2001.
I think he got that mixed up with mission to mars?
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+2 16. PuffPuff commented 7 years ago

@dear Sizzlik, I managed to understand the first time :)

My point was that if we get that far with our technology, I doubt we will be having problems with transportation.

Ofc people can minus the hell out of my comment but having nanobots that replicate and build/rebuild, have a complex AI, I doubt that we will be needing Jupiter.