Robots
Rio Malaschitz,2022-05-28 11:06:08
Less than 100 years have passed since the construction of the first computer, and we are already seeing huge advances in artificial intelligence and robotics. In 50-70 years, it will probably not be a problem to build a rocket, fill it with robots and send it into space to the nearest star, and perhaps a speed of 1/100 of the speed of light will be achieved.
After reaching some asteroids, robots should be able to build mines, industry and build new missiles autonomously. It would probably take them some year. If it worked like that, in an estimated 6 million years, a rocket with robots would fly around every star, around every planet, and around every moon in the Milky Way, sending lots of information to Earth.
Even though it looks like a lot of 6 million years, it has happened 10 times since the extinction of the dinosaurs. And dinosaurs could repeat it 30 times during their existence.
But neither did the dinosaurs, and neither of the millions of potential civilizations in the universe did.
So.
They do not exist.
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Re: Robots
Bohumil S.,2022-05-28 12:14:13
1. In 50-70 years? During such a period, the rocket’s performance will only approximately double since the time of Saturn 5, and only if SpaceX successfully completes the development of Starship. 0.01c? That’s approximately 272x the escape velocity from Earth. But energy increases with the square of speed. A meaningfully large ship (in the order of 100 tons) will not be accelerated to such a speed by conventional rocket technology, not only in 50 years, but also in 150 years.
2. Your ship approaches the neighboring star at 0.01c. How do you make a landing? Now you need to repel that extreme energy somewhere. This is most often solved using ablative shields, but this applies to orders of magnitude less speed and energy. When entering the atmosphere of a planet, the ship would simply explode, at best, burned violently. And landing on asteroids is even more challenging, you need jet engines that deliver an acceleration (= deceleration) of 0.01c.
This does not mean that space colonization is impossible, but it cannot be imagined as Hurvínek’s war 🙂
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Re: Re: Robots
Vojta Ondříček,2022-05-29 06:08:45
Yes, we won’t get anywhere with reactive chemical drives.
Voyager1 is now about 22.2 billion kilometers from the Sun, or about 148 AU, or about 20.5 light-hours. That journey has lasted for 45 years. With a purely chemical drive, he wouldn’t get that far at all.
A wandering planet can move around the Sun, for example, one light-year away. However, a planet without its own star, ie without life-giving energy, ie without atmosphere, is not suitable for life.
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Re: Re: Re: Roboti
Libor Zak,2022-05-29 10:04:50
You forget about uranium. There may be a lot of nuclear energy on a stray planet or asteroid, you don’t have to worry so much about energy. You don’t want to fool a few billion people, but only a few thousand colonists.
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Re: Re: Re: Re: Roboti
Libor Zak,2022-05-29 10:08:17
Sorry for the typo. Donkey doesn’t have an optimized site for mobile and you can’t normally write, so I dictate and there are problems with that.
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Re: Re: Re: Re: Roboti
Vojta Ondříček,2022-05-29 13:43:14
And what would the colonists from that inhospitable planet like they have?
Displacing assassins to such a planet would be a more severe punishment for them than a lifelong bond on our beautiful, life-wishing planet.
With that uranium, it will probably not be easy to mine it and enrich it with fuel cells, even on the Seebeck principle. Such settlers would have to bring water, food, raw materials, machinery and equipment from Earth for several decades to come. Another problem would be communication with the parent planet.
Like this:
year 2040 “Here Earth, hello, how are you?”
year 2045 “Well, god, it’s worth it here..
year 2050 “This is the Red Oktober sabotage group, last year we conquered the NASA center in the former USA and the war is slowly coming to an end …”.
rok 2055 “aha”
year 2060 “I do not know, communicate in the obligatory cesosvětovon language, in Russian”
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