The ISV Venture Star can travel from Earth to Alpha Centauri A (a distance of 4.37 light years[6]) in a timeframe of 6.75 years. It starts with a five and a half month long initial acceleration at 1.5 G to reach 0.7 times the speed of light. Then it continues at the same speed for 5.83 years before the engines or photon sail (depending on which way the ships are traveling) are used to decelerate the vehicle. The ship's deceleration phase also lasts for five and a half months at 1.5G.
An ISV has two matter-antimatter engines arranged symmetrically in a tractor configuration that pulls the ship behind them. They are angled slightly away from the body of the ship, a few degrees off the ship’s longitudinal axis, so their exhaust plumes bypass the ship’s structure. This results in a slight loss of thrust efficiency because the engines do slightly push toward each other. The lost thrust is deemed acceptable because the angling separates the body of the ship from the plume’s thermal radiation. Scientists considered placing the engines at the back instead, but the mass-savings advantage of a tensile structure outweighs the disadvantages of shielding. Since a very long truss is needed to separate the habitable section of the ship from the engines, which produce large amounts of radiation, such a structure would be prohibitively massive if it were a conventional space-frame truss designed for compressive loading. The carbon-nanotube composite tensile-truss creates the necessary stand-off distance at one-tenth of the mass. Essentially, it is a rigid, extremely strong tow cable with engines in the front and the "trailer" in the rear.
The ISV Venture Star is unironically the best depiction of an interstellar vehicle ever put onto the big screen. It works with current understanding of physics.
>telepathic linking It's literally a physical linking.
Xavier Turner
My dick lol
Jackson Sanders
>unobtainium >flying islands >carbon fiber collar bones >hurr aewa >neytiri word for internet exists >hard scifi
John Brooks
How is it not telepathy? The link is clearly not electromagnetic otherwise they wouldn't be able to control the avatars around the Hallelujah mountains.
Jonathan Jackson
I thought you were talking about the linking with the dragons and horses.
Carson King
never underestimate based Jim attention to detail:
Day-Night Cycle
Pandora receives significant light from Alpha Centauri B (ACB). As a result, Pandoran nights are never dark during half of the Polyphemian year, but instead are more like Earthly dusk. At the closest point in its orbit, ACB is about 2,300 times as bright as Earth's full moon; at its furthest point, it is still one hundred and seventy times as bright. During the other half of the year when ACB is in the daytime sky, many Pandoran nights are illuminated by both Polyphemus's huge disk and the reflected light from other nearby moons. Truly dark nights are uncommon. Polyphemus occasionally eclipses ACB at night for about one hundred minutes, but the light reflected by the planet still keeps the night from being dark.
When ACB shares the daytime sky with ACA, at its closest it adds about half a percent to the total illumination. When the 2 stars are close together in the sky, the effect of ACB's more orange light is unnoticeable. But, as they separate over the years, an orange tint may be seen in areas shadowed from ACA's direct illumination. At its most distant, ACB is about 2,700 times dimmer than ACA and does not produce noticeable lighting effects. However, it still appears as a blindingly-bright tiny orange disk in the sky.
Because of its high axial tilt (29°), Pandora exhibits considerable annual variation in the day-to-night ratio. In addition, its elliptical orbit produces seasonal temperature variations and a range in daytime illumination of about ten percent.
Juan Anderson
I'm talking about how the humans control their avatars.
Aiden Gomez
>>carbon fiber collar bones What ?
Mason Collins
apparently the skellingtons of the navy are naturally infused with carbon fiber so they can be turned into light but strong bicycles
Alexander Roberts
Based. Not unrealistic though, carbon is a natural element after all, and don't forget that human skeletons are made of metal, so nothing is impossible.
Owen Ramirez
>Unobtainium >Hard scifi
Adrian Cruz
>it's not hard sci-fi because it has a funny name!!! It is a room-temperature superconductor for energy, which makes it very valuable; it is worth $20 million per kilogram (2.2 lbs) unrefined (worth $40 million per kilogram refined) on Earth.
RDA research already established the possibility of direct mental communication between humans. RDA scientist Dr. Cordell Lovecraft was given the task of carrying his Dark Dreamer project, which sought to transmit mental processes – “thoughts” – to humans at a distance, as well as interspecies mental communication.
Initial dissection of Na’vi specimens found that although the Na’vi show a surprising degree of external parallel evolution, their internal anatomy and metabolic processes were substantially different from that of humans. The Na’vi brain in particular, with its external neural queue and three cerebral hemispheres (versus two for humans), proved a daunting obstacle.
Building on work with brain-wiped primates and condemned criminals, Dr. Lovecraft was able to demonstrate that full sensory bonding could be established between human twins, human-animal hybrids that shared common DeoxyriboNucleic Acid (DNA), and eventually human/Na’vi hybrids with "resonant" genetic DNA/NVTranscriptase blueprints.
Since the Na’vi cellular nucleus organelle does not use nucleic acids (DNA or RNA) to encode genetic information, producing a ‘translation table’ that matched a specific human's DNA to a Na'vi NVTranscriptase equivalent closely enough to allow a level of neural resonance strong enough for congruent mental communication to occur required many months of processing on massively parallel "zettaflop" photonic computing arrays as well as many failed experiments; some of which caused severe permanent psychological trauma to volunteer subjects. (1/2)
Lucas Flores
Eventually the Avatar Program succeeded in producing the first viable hybrids between completely unrelated species – a considerable achievement since, as Dr Lovecraft famously remarked, humans are “far more closely related genetically to garden slugs than to Na’vi.”
With the aid of thought amplification/transmission "link beds" as well as customized nanotech receiver/transmitter nodes grown into avatar brains from their earliest blastomere stage of development, human "drivers" can now operate their avatars at distances of tens of kilometers. These distances can be reduced in areas where the Pandoran magnetic fields are very strong, such as near the many flux vortices.
Originally part of RDA’s Na’vi outreach program instigated at the behest of Earth's government authorities, the Avatar Program has moved from being a poorly-defined xenobiological experiment controlled by Earth-based bureaucrats, ivory-tower academics, and populist politicians to become a tightly-managed engineering project incorporating the most advanced technology from RDA’s research and development laboratories.
Dr. Lovecraft has been nominated for multiple Nobel Prizes in biological sciences, but the nominations have invariably been withdrawn following protests from human rights organizations, the UN Pan-Faith Council, and animal rights activists. [1] (2/2)
The avatars are literally bio-robots, with fully immersive control systems.
Jason Thomas
Friendly reminder that Jake says Avatars are 'grown from human DNA, mixed with DNA of the natives' meaning in order to get that DNA they had to get a blood sample or something similar. It's very likely some Na'vi got raped and had their blood taken.
Christian Morgan
OK but how did the human drivers control them if not telepathically?
hmmm they obviously counldnt have gotten some genetic material voluntarily from when grace and her team maintained friendly relations with them
Easton Morales
>human "drivers" can now operate their avatars at distances of tens of kilometers. Pretty sure Jake travelled much more than tens of kilometers away from it's body.
>from when grace and her team maintained friendly relations with them They did that with their avatars...
Anthony Bennett
>as well as customized nanotech receiver/transmitter nodes grown into avatar brains from their earliest blastomere stage of development, human "drivers" can now operate their avatars at distances of tens of kilometers. Why don't they use this technology in their ships and powered exoskeletons since it appears to be immune to electromagnetic interference caused by the Hallelujah mountains and which was a major factor in the humans' defeat?
Austin Gray
Hows the fan fiction and EU of Avatar. I need something new to waste my life on that normies don't like.
Carson Watson
>which sought to transmit mental processes – “thoughts” – to humans at a distance, as well as interspecies mental communication. So literally telepathy
are you saying the first contact between humans and navy happened AFTER the humans developed the abataps?
Christian Miller
Precisely no, I'm saying that Grace ccould not have gotten the first genetic samples. It must have been a guy in space suit.
Benjamin White
>humans come back in the sequels with literal fucking xenomorph battle cyborgs This is gonna be fucking kino
Benjamin Collins
you don't need a space suit to survive in pantera's atmosphere, just a breathing mask
Owen Clark
>two fuck-huge antimatter engines with radiators the size of skyscrapers that pull a tiny 4-man crew pod and 100-person hypersleep pod at 0.7 lightspeed
Now that's a spaceship. I don't really get where the radiators radiate the heat to or where they store the non-human goods for transport, but it sure looks cool
Ethan Watson
Most scifi avoid the useless space between star systems and create loop holes to get to them quickly like hyper space, jump drives, wormhole or literal teleportation. Its is smarter to figure out shortcuts in spacetime than actually moving faster than light in one direction.
Michael Gomez
If I were the first guy to land on pandora I would wear a space suit whatever the sensors say.
James is a bit of a twat, but he is unironically an amazing director. Can make the most basic plotline interesting with brilliant and groundbreaking visuals. I am so hype for Pandora, which is allegedly what Avatar 2 will be called.
Nathan Rogers
i have zero memory of this movie. it left no impression on me good or bad.
Christian Wright
>hard sci-fi >unobtainium avatarfags are brain-dead
Parker King
It only upsets anglos.
Landon Smith
we will never see avatar 2 when humans strike back and win
The radiator design is pretty good for a solid metal design, the radiating surfaces are aligned away from the ship and each other so heat radiates outward. That being said, there are more advanced radiation systems that NASA came up decades ago with like liquid droplet fields which are more efficient than solid designs. There's a disappointing lack of radiators at all in sci-fi, I want more hard stuff and less fantasy.
I really like the lore in Avatar. Alot of tought was put into the na'vi, alien life and all the human technology and weaons
Ryder Anderson
You and anyone who likes Avatar has absolute shit taste.
Kevin Nguyen
This, they don't have super powers, what's the point ?
Leo Ortiz
Neytiri's broken english in the film is super cute
Juan Brown
This is sad! Very sad only!
Henry Garcia
Wireless connection, you abatap
Caleb Nelson
Get your brain checked, pronto.
Aaron Taylor
Na'vi Mating Practices
The Na'vi are monogamous creatures that mate for life. Na’vi reproduction is similar to that of placental mammals on Earth. A Na’vi female will typically produce from one to ten offspring, often spaced widely apart in time. Na’vi females have two breasts, and nurse their infants for up to four months. Some Na’vi elect to abstain from reproduction, despite being sexually active. It is not known how contraception is accomplished in this case, although the Na’vi appear to be quite sophisticated in this regard. Na’vi males are typically pair bonded with females, but male-male and female-female permanent bonds are not uncommon. Sexual activity outside of the bonded pair is not uncommon, but is almost always associated with fertility rituals and other rites, and has never been reported to lead to a disruption of the pair bond.
Though the mechanics of reproduction are similar to humans and other earth mammals, the Na’vi’s unique physiology provides them with a level of intimacy unknown on Earth. When an appropriate mate has been selected (which can take many years), the male and female Na'vi will connect queues to create an emotional bond that lasts a lifetime. The intertwining of queues, called “Shahaylu”, creates a state of unified body consciousness in which both parties access the physical sensations of the other. While not erotic when used for the control of animals, during mating it creates a heightened awareness of the other person. This leads to an experience similar to the prolonged state of arousal and deep spiritual connection found in some Tantric practices on Earth, but considered by the xenoanthropology community to be much more profound. A single instance of this bonding ritual leads to a life-long pair bond. The actual reproductive act, which resembles human intercourse, follows the bonding ritual, and the partners remain in a “linked state” during and for some time after the sex act itself.
pandorapedia.com/navi/life_society/the_navi.html >Data on lifespan is incomplete. It is generally accepted to be longer than human by approximately 30%, but the rate of maturation is more rapid followed by a plateau of adulthood without physical decline.
