/sci/ - Science & Math

>natural fusion examples
>expanding Earth

>mfw seeing this type of thread for the first time in over a year

Automation, yo.

http://www.marshallbrain.com/manna5.htm

>>5390407
It's all about having sufficient technology to correcting connect all nerves in the brain stem with the spinal cord. It just requires really serious nanotechnology.

>Genetic manipulation in Humans
Minor, designer babies
>brain transplants
Successful? Highly unlikely
>commercialized space travel (doesn't have to be interstellar, just far enough away from Earth to be technique considered "space")
Definitely.
>Artificial limps that look and feel like real ones
Very nearly.
>Robot Waifus
Yes, but they may still be in the uncanny valley stage.

>Is there anything else that i should looking forward to in next decade or so?
LFTRs
Lithium-air battery technology
Extremely immersive virtual reality
Mind-controlled consumer electronics (i.e. instant messaging via thinking)

>Scientists find extensive evidence for Earth-atmosphere volume of CO2 trapped in upper crust

This isn't /highschoolmath/

>>5260384
>The fresnel lens has the added difficulty of having to be turned in as one giant piece
No, in my original post I stated that it would be thin strips that would be lightly connected (magnetism, physical connections)

My opposition to reflective vs. refractive is purely based in variable solar wind output and how that may affect its positioning.

>>5260370
The way I see it it is harder to deal with massive mirror arrays despite the relative abundance and ease of making metallic panels as making them a great size with constant adjustment of angles to line up sunlight onto Mars will become more trouble than it's worth, as shit like solar wind means that it requires constant repositioning.

I will admit finding a substance that can be produced in an automated fashion from regolith that is transparent, radiation tolerant, can withstand +1,000'C temperatures and can weather micrometeoroid impacts will be a task unto itself.

Earth will become like Venus 1 to 2 billion years from now.
http://futuretimeline.net/beyond.htm#1000000000

>>5260355
Mirrors use reflection, fresnel lenses use refraction through transparent substances with higher refraction indexes than air/vacuum.

>>5260329
Robert Zubrin did the math for a manned crew on a 2.5 year trip to and from Mars. With its current atmosphere and the paltry shielding that habs on the surface would provide, you would actually receive less radiation than if you were a pack-a-day smoker for the same time.

Another thing you have to factor in is Mars' gravity. 0.376Gs. A 1 bar atmosphere on Mars would have over 2.5x the scale height of one on Earth, not to mention that Mars receives ~43% of the solar radiation that Earth does.

A planetary magnetic field is only truly useful for extended periods of habitation (think 50,000,000 - 800,000,000 years)

>>5260333
Not mirrors, fresnel lens. And I have a few ideas on how to reflect it Marsward constantly.

>>5260323

>>5260298
Personally if I were overseeing the terraformation procedure I'd mill down asteroid regolith via automated stations designed to seperate out required elements to extrude some kind of radiation-tolerant, transparent, fracture-resistant sheeting. Each thin strip of this material would be indented with slightly curving lines. So basically a composite fresnel lens.

Completing a 20 x 20km sheet strung together placed at 25,000,000km orbit from Sol could do the same job as a faaaar, far larger sail array near Martian orbit, as the solar irradiance at that distance is roughly 40,000W m2 (Earth is 1.2kW, Mars is ~470W)

'Course, even such a development requires automation to advance a great deal. I reckon the technology will be available by 2040.

Warm center, cold outside
Cold outside contracts
Warm center conflicts with contraction
Explode

I am surprised that the temperature differential was enough to set it off though.

Under traditional capitalist economics it will likely never be economical to do any more than kinetic bombardment through comets.

>>5240957
So, so incorrect.
http://energyfromthorium.com/cubic-meter/

>>5216932
One of the reasons I've stopped posting on here, I get met with frowning faces and pessimism.

Anyway, some OC

>>5216919
It just feels like the optimism has been slowly drained out.

>>5216916
Lol forgot trip

>>5216900

Asshat general?
Asshat general.