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This actually isn't all that implausible, considering that the average density of the Sun's photosphere (which is the layer right above the core) is two ten-thousandths of a kilogram per cubic meter. The corona is .000000000001 kg/mˆ3. For comparison's sake atmospheric pressure is (on average) 1.2 kg/mˆ3 on Earth at sea level.
At those solar densities there simply isn't enough of a medium to conduct the sun's heat into an object. The mirror array reflects off the infra-red radiation, and one would assume there's a fair amount of lead shielding after that, (given how they're toting a bomb composed of all the fissile material on earth), and that takes care of the particle radiation. My problem with the science of the film is that they continued the whole "stuff freezes instantaneously in the vacuum of space" myth. Yes, space is very cold, space is also very empty, so there's nothing to conduct body heat away from the body. A person exposed to hard vacuum boils to death long before they can freeze. |
Agree on the freezing comment.
I would say that this highlights why so little SF works in the movies. Had I not just read your post I would have lumped Sunshine in with The Core in terms of plausability. Certainly there is nothing in the film to make the case for what they are doing.
Contrast Sunshine with The Fountain, which I would classify as SF even though it adopts a lyrical approach (and yes Hugh Jackman floating through space in a bubble is much less believable than anything in Sunshine....but it works damnit!)




