/sci/ - Science & Math

OP is a faggot

We'll ride our invisible dragon made of silly-strings and time-travel there.

We make nuclear fusion.
Then we make stem cell regeneration.
Then we transform all of earth's resources into a space habitat propelled by some force.
We use half of our fuel for acceleration to the direction of the star. The other half for stopping. A reserve for steering.
OP you're a genius.

>>3082735

We're not going to be able to survey the planet for a very, very long time. Even if the survey tested positive for hospitable conditions, it would still take a very long time to get there and set up research, which would take a very long time to get back to Earth.

1. Send a probe, wait 40 years to hear if it's a decent planet (assuming light speed travel times).
2. Send a crew with equipment to set up a mini civilization, wait 40 years just to hear that they made it there.
3. Send a large colony ship, wait 40 years just to hear if the mini civilization was a success and whether or not to send more people/resources.

So, assuming we had the technology to get a ship there at light speeds that could leave tomorrow, we're still 120 years away from finding out if we can take a 20 year ride to our new world, great. I has a sad.

Well, the first thing to do is to reach longevity escape velocity and/or ability to download your brains into a computer.

That way we can actually live long enough to still get the information from the probe we send out back.

Then again, if it turns out you can actually use quantum entanglement to send information, we'll be ahead of the game.

At any rate, a ship using fusion bombs and Project Orion can achieve a maximum velocity of about 10% the speed of light. If we can manage antimatter bombs we can bring that up to 50%. In the first case, that's a 200 year trip, then 20 more to relay information. In the best case (antimatter, quantum entanglement) we get information in just over 40 years.

Either way, in the interim, we may as well start colonizing the rest of the solar system while we wait.

>>3082747
the one that breathes cold fire, right bro?

>>3082791

I don't see the appeal in downloading ones brain into a computer, you still die, even if "you" live on.

>>3082802
yeppers.

>>3082808

The idea is to slowly replace parts of your brain with robotic parts, so that your conciousness is preserved.

Your brain replaces parts of itself slowly over your entire life and your conciousness stays intact, so it makes sense.

What about the possibility of an Alcubierre drive?

I've never seen much research on it, so I don't know if there are any real problems with it besides cost or scientific knowledge limitations.

>>3082825
The collective approves

I think you underestimate the difficulty of actually getting people there. There are so many necessary pre-requisites that it makes sense to focus on

1.) Longevity and genetic engineering (e.g. to make people more resistant to radiation)

2.) Mind-machine interfaces (so your passengers can tap into virtual reality and gain something to do on the long-ass journey)

3.) Space-based infrastructure (Starships can only be built in space. Any reconnaissance you can obtain from fuck-huge space telescopes would be very beneficial to the preparation for departure. Powerful lasers can give the space-ship a push, helping the propulsion problem.)

>>3082842

Resistance is Futile.

Also it's V/I.

You know, if we (as in NASA and other space agencies) fired a rocked towards the planet it would take well more than 20 years to reach it.

Infact, we would probably advance enough to build a rocket that will pass the previous one 1000 years later.

>>3082859

1000 is a bit much, assuming we were serious about interstellar travel we could right now do 0.1 C. So 200 years tops.

>>3082863
>we could right now do 0.1 C

News to me.

>>>/sagan/
>oh wait, this isn't 420chan....

>>3082837
What he said. Does anyone know just what you would need to create an Alcubierre drive? What does current physics tell us we'd have to do?

>>3082886

http://en.wikipedia.org/wiki/Project_Orion_(nuclear_propulsion)#Interstellar_missions

Nuclear Pulse Propulsion.

"Later studies indicate that the top cruise velocity that can theoretically be achieved by a thermonuclear Orion starship is about 8% to 10% of the speed of light (0.08-0.1c).[2] An atomic (fission) Orion can achieve perhaps 3%-5% of the speed of light. A nuclear pulse drive starship powered by matter-antimatter pulse units would be theoretically capable of obtaining a velocity between 50% to 80% of the speed of light."

>>3082886
That speed is achievable with current technology via "nuclear pulse propulsion" which basically means detonating low-medium yield hydrogen bombs one after the other to push the craft forward.

One guess why this, the best achievable space propulsion currently, is not a popular topic for discussion.

>>3082916

Ooo! ooo! Me!

Is it because you'd have to fill a huge ship in orbit of the planet with thousands of nuclear bombs? And it would have a back end specifically designed to survive nuclear detonations and as such would be effectively impervious to ground based strikes?

Also, probably the cost. Shit's expensive.

>>3082930

What about the bits and bytes of the pusher plate that would be ionized with every blast? Unobtainium?

>>3082935

"A graphite based oil would be sprayed on the pusher plate before each explosion to prevent ablation of the surface."

They aren't normal nukes, they are low-yield shaped charges ,and a nuke is a lot less dangerous outside of the atmosphere. No overpressure wave.

>>3082935
Steel. No, really.

>>3082961
>>3082958

Allright!

Next up: How to maintain constant acceleration.

>>3082965
make a uranium fission machine gun.

>ez guiz.

>>3082965

You detonate one mini nuke a X time period to ensure a constant acceleration of about 1g for 10 days.

For 1g, that time period is one explosion every 3 seconds.

For plane change manoeuvres, use ion propulsion generated by nuclear power. Try not to need to too much.

Plane change manoeuvres are expensive.