A few quibbles
In the movie, however, Cooper and his crew spend some
time in close proximity to the black hole, which strains
credulity.
The astronauts would likely be killed by the energetic
radiation thrown off by the superhot disk of material circling
Gargantua, Roberto Trotta, an astrophysicist at Imperial
College London, noted in an article for the British newspaper
The Guardian. Or they’d be “spaghettified” by the intense
gravitational pull, which would be much stronger at one end
of their bodies than the other, Trotta added.
And that’s not the only issue. The astronauts land on a
world that orbits very close to Gargantua — so close that, as
the film depicts it, for every hour spent on the exoplanet’s
surface, seven years elapse on Earth. Such “time dilation”
In fact, a planet so close to a black hole could not even exist,
Trotta observed: Tidal forces generated by the black hole’s
immense gravity would tear the planet apart.
A visual spectacle
Such details will rankle some filmgoers, while other folks
won’t mind suspending their disbelief. But most people who
see “Interstellar” will probably agree that it’s a stunning visual
spectacle.
One of the alien planets depicted in the film, for example,
is a water world featuring mysterious gigantic waves, while
another is a frigid realm whose clouds are frozen solid. These
worlds are gorgeously rendered, as are the many spaceflight
sequences throughout the movie.
The spaceships in “Interstellar” are also nicely conceived and
designed. Endurance is a ring-shaped vehicle consisting of 12
boxy modules, some of which can be shuttled to the surface
of an exoplanet to set up a base. The mothership carries two
heavy-lift “landers” to perform this work, as well as two moreagile
“Rangers,” which the crew uses for planetary exploration.
And Endurance rotates 5.6 times per minute to generate
Earth-equivalent gravity aboard the ship — a detail the
sticklers in the audience will doubtless appreciate.
does indeed occur in the presence of gravitational fields, but
there’s no way it could be so extreme, according to Trotta.
“You would need such a strong gravitational field that you
need to be close to what is called the Schwarzschild radius of
the object — essentially the event horizon of a black hole,”
he wrote in The Guardian. (The event horizon is the point
beyond which nothing, not even light, can escape a black
hole’s clutches.) “There is simply no planet that can have
this kind of gravity, and if you tried to land on the surface, it
would be so strong it would crush you. The numbers simply
do not work.”
THE CLAPPER 2014 - 2015
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Read more at:
http://www.space.com/27701-interstellar-moviescience-black-holes.html