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originally posted by: Astyanax
a reply to: Rezlooper
No, this cyborg future is a 1960s technofantasy some overgrown children still cling to.
Interstellar travel by humans is impossible for physical reasons. Hard radiation, blue shift, relativistic mass effects and much more.
FTL breaks a few laws, for one there's no 'mass' to speak of so relativity isn't a problem
as for radiation i guess they found a way round that as well.
originally posted by: Astyanax
a reply to: playswithmachines
FTL breaks a few laws, for one there's no 'mass' to speak of so relativity isn't a problem
What do you mean, there’s no mass to speak of? Do you imagine that particles travelling faster than light would be massless?
as for radiation i guess they found a way round that as well.
They found a way round a torrent of ordinary photons blueshifted into high-energy gamma particles impacting the ship and astronauts?
I don’t believe you know what you are talking about.
originally posted by: moebius
a reply to: Astyanax
From my understanding blue shift would only become a problem when you get really close to c, like 99%.
Before that you have to deal with interstellar gas, which acts as hard radiation even at low relativistic speeds. So you'll need some serious/clever front shielding. A combined material and magnetic shielding system maybe.
the atom's ability to have mass depends on the separation between nucleus & it's orbiting electrons
Gravity is proportianal to the amount of electric stress on the atom
BTW there are 3 systems; chargeless mass, charged mass, and massless charge.
no Lorentz contraction or all that other relativity BS