@Metal-Brain
Sure but if one crazy idea leads to humans being able to establish colonies on nearby stars like Alpha Centauri humanity will thank those crazy sci fi scientists.
That can happen anyway with say 1/10th speed of light craft, 40 years to Alpha Centauri system, a system where you get three stars for one journey. A win win for the first interstellar probe, manned or robot.
Those three stars are like the attraction of the moon for early space explorers, the closest place we can more or less easily visit and Alpha Centauri will be thought of in the same light, especially now we found a planet in the goldilocks zone were liquid water can exist without either freezing solid or evaporating away like on Mars or Venus.
@sonhouse saidYou will likely find no planets there that are any better than the uninhabitable planets here in our solar system. So you find a planet similar to mars all the way out there. Then what?
@Metal-Brain
Sure but if one crazy idea leads to humans being able to establish colonies on nearby stars like Alpha Centauri humanity will thank those crazy sci fi scientists.
That can happen anyway with say 1/10th speed of light craft, 40 years to Alpha Centauri system, a system where you get three stars for one journey. A win win for the first interstellar probe, manned ...[text shortened]... were liquid water can exist without either freezing solid or evaporating away like on Mars or Venus.
Another 40 years back, that is what. I sincerely hope you have robots making this long and boring journey that is dangerous at that speed. No person would have a life worth living in complete isolation from the rest of society for that long.
Are you counting on people lengthening their life spans? You do not expect people's grand children to finish the trip back, do you? Please tell me you have robots with AI making this trip. Or should we suit you up? Are you willing to go?
@Metal-Brain
Fortunately it is up to real scientists to make decisions like that and not to commies like you. If you were influential 400 years ago we would not have explorers going to the America's or spacecraft that can leave the solar system and now two of them HAVE left the solar system and it matters little they would get to some star or other in some 20,000 years, the point is the cat is out of the bag and we will not stop space exploration or propulsion technology.
For instance we have developed chemical rockets capable of getting to Mars in a month or two instead of 9 months it takes now.
And nuclear propulsion is on its way, no doubt pissing off your real boss Putin.
In another 20 years or so spacecraft will be a LOT faster than now and that increase will continue no matter how many of you provincial backwards thinkers bitch about it. The main thing you apparently HATE is the US getting there before Russia.
@sonhouse saidYour so called commies in Russia dominated the space race and made our wealthy capitalist country look stupid before 1969. They had a better education system at that time. What is wrong with a communist educational structure? That is what we have here in the USA.
@Metal-Brain
Fortunately it is up to real scientists to make decisions like that and not to commies like you. If you were influential 400 years ago we would not have explorers going to the America's or spacecraft that can leave the solar system and now two of them HAVE left the solar system and it matters little they would get to some star or other in some 20,000 years, the ...[text shortened]... s thinkers bitch about it. The main thing you apparently HATE is the US getting there before Russia.
Public education and the military are communes. The USA is already part communist like all countries. But keep on demonizing what you do not understand Mr. McCarthy. You have no idea why you hate communism. You just heard it was bad. You have no idea what communism is.
You said you used to work for NASA. How is NASA different than communism? Russia had a space program too. Are they really so different? Where was NASA's competition before Musk's Space X? Space X is a capitalist space agency. You worked for our commie space agency.
@Metal-Brain saidOh, the deep space irony.
But keep on demonizing what you do not understand Mr. McCarthy.
@Metal-Brain saidEver hear of time dilation?
That is impossible. c is the speed limit.
It would take so long for them to get here they would send robots with AI instead of themselves. The notion of alien bodies being found at Roswell or anywhere else is ridiculously absurd. They would not dare risk contaminating our biosphere with alien microorganisms unless they intend to sabotage life on this planet anyway like the movie Independence Day and replace us as the dominant species.
Oh, wait, you've already proved you don't understand that either.
@sonhouse saidThis is what the warp nacelles in Star Trek do.
@Metal-Brain
c is not the limit for spacetime. That is the point, there is at least theoretical work being done on space warp drives which puts a spacecraft in a protected bubble with spacetime bending one way in back and the other way in front so you theoretically can effectively go faster than the speed of light.
Of course a rocket cannot get to the speed of light, proba ...[text shortened]... least.
And don't go into a tirade that anti matter rockets are impossible, I don't want to hear it.
@Metal-Brain
You must have failed Relativity.
The time dilation thing is real and has to be taken into account in particle accelerator design among other things.
The twin example is real too, because time slows down when you get close to c the twin on board and every atom on board runs slower so when the craft gets to a target star, say 100 light years away, and the time dilation is say 100 to 1, so one year goes by as far as the clocks on board the craft say, and the twin on board is one year older when the craft gets to its star, say a year farting around there and take off back, so he gets back to Earth and is 3 years older. Time dilation doesn't change the time flow on Earth however and the spacebearing twin finds he has taken a trip into Earth's future and is now 201 years later than when he left and he was say 30 when he left and 33 when he got back but his twin say he died at age 100 so he died 101 years in Earth's past and the living twin now is in such a far future none of the people he knew would be alive and it might be the country he left would have a totally different kind of government and maybe the language has evolved to the point an interpreter would be needed to help him communicate and he would have to have at least language courses, so back to school he would have to go, taking language and history and how much science would have advanced in 2 centuries, a totally new and no doubt frightening world for the survivor.
The journey still takes 200 years but the ship doesn't know that, they think the round trip took 2 years which means you only need 2 years of food and medicine and such not 200 years worth
@sonhouse saidIt takes the same amount of time to get there no matter how fast you travel. If it takes you 40 years to get here from Alpha Centauri at 1/10 of c that is how long it will take to get here. That is a fact.
@Metal-Brain
You must have failed Relativity.
The time dilation thing is real and has to be taken into account in particle accelerator design among other things.
The twin example is real too, because time slows down when you get close to c the twin on board and every atom on board runs slower so when the craft gets to a target star, say 100 light years away, and the time ...[text shortened]... rip took 2 years which means you only need 2 years of food and medicine and such not 200 years worth
Time passage for the high velocity traveler is irrelevant. You cannot make the trip and get here any faster. If you want to argue that high velocity travelers seem to get there faster from their perspective that is fine, but anyone on earth is not going to expect you to arrive any sooner from time dilation.
Although an interesting thought experiment it is largely irrelevant since nobody can travel anywhere near the speed of light. It is simply impossible. Even if you could the smallest little particle could rip a hole in your space craft. You would have to embed your space craft into a big asteroid for protection. Consider the inertia.
Where are you going to get all of the energy to travel in such a high velocity? And can you survive length contraction?
@Metal-Brain
You REALLY need to take physics for dummies 101.
For the travelers they effectively go faster than light because their clocks go down on every atom and quark in the spacecraft and their bodies and the food and air and they are still alive after a 100 light year trip and only one year older in my example.
That doesn't change the fact that here on Earth, if you had a way to track the movement of the craft we would say it took 100 years to get there but you clearly don't understand what time dilation is all about.
The folks in the spacecraft are still alive after 100 years goes by on Earth.
BECAUSE of time dilation they think they are going faster than light because they have covered 100 light years journey in one year.
Of COURSE they are not actually going faster than the speed of light but when you get that close to c time slows down just like time flow slows down when you get into a deeper gravity well like if you fell into a black hole, because you are in an incredibly strong gravitational field, a deep deep bending of spacetime, you think you are going in very slowly and you would be from your perspective, watching your watch, it would take near forever for you to feel spaghetification, being stretched out like the ancient two horse torture.
@Metal-Brain saidYou don't quite get ANYthing you're told, do you?
You've definitely proved you don't understand time dilation at all.
The twin paradox only proves one twin would age faster, not get anywhere faster.