The Core

New this month Question: If the core stopped spinning, where would all the kinetic energy that keeps it spinning go? Energy cannot be created or destroyed.

New this month Answer: For one thing, the rotation of the core is almost identical to (if not a bit faster than) the rotation of the rest of the planet; so the core coming to a stop relative to the rest of the planet is physically impossible. Over billions of more years, the Earth's core and mantle may eventually cool off and solidify (as has happened on Mars), but the core will still be rotating at the same velocity as the rest of the planet. By that time, of course, Earth will have also lost its Moon, so there will be no tidal forces between the Earth and Moon, which means the planet will be seismically dead, but the Earth will still be rotating on its axis. For the time being, though, it would literally take a miracle, an act of divine intervention, to overcome the physics of planetary rotation. If the core could somehow be stopped relative to the rest of the planet (which is physically impossible), then the core's energy would quite quickly be dissipated into the Earth's mantle, which would become an unimaginable inferno (much more so than it already is), propagating seismic and super-volcano activity all over the globe by a factor of, say, 10,000 times normal activity. The Earth's crust would be effectively ripped to shreds by super-earthquakes and eruptions within a matter of hours, perhaps even causing the entire globe to disintegrate into space. As mentioned, though, it would require something on the order of a true miracle to precipitate this chain of events.

Charles Austin Miller

New this month Answer: The same place it goes normally: dissipated into the Earth.

LorgSkyegon

Question: When Rome is been destroyed by that superstorm, just after the Colosseum explodes which building is the one that is destroyed by the lightning bolts? (The one with the statue of a knight)

Chosen answer: I believe you are referring to the Vittorio Emanuele Monument. Victor Emmanuel II was the first monarch of Italy in the mid to late 1800's. The monument has also been nicknamed the "typewriter" and the "wedding cake".

Question: Why in this film should NASA and the military handle the operation? It is neither related to space nor related to war. Some institute related to geo sciences should handle it.

Chosen answer: To put it simply: NASA's got all the technology and the people trained to use it, and the military is involved in every government project, not just acts of war. Also, the military has a vast and efficient logistics system making it possible to bring the major pieces of equipment together in the short amount of time available.

Phixius Premium member

Question: When Beck tries to dodge the huge diamonds, the ship gets a breach. Wouldn't that cause the outside material to spray into the ship's interior, given the intense temperature and pressure?

Chosen answer: The inner-earth ship known as VIRGIL is comprised of multiple double-hull detachable sections. The outer hull can be breached, while the inner hull can maintain structural integrity just long enough to jettison the damaged compartment. When VIRGIL encounters the giant diamond field, the very last section (the weapons control compartment) suffers a hull breach, and it immediately begins automatic detachment. Dr. Serge Leveque, the nuclear weapons expert, sacrifices himself by saving vital weapons deployment information from that compartment just before it detaches and is destroyed.

Charles Austin Miller

Question: Why does General Purcell want Virgil to fail? It seems all he's trying to do is stop them from achieving their goal. He knows full well DESTINI stopped the core in the first place and is determined to fire it again with Virgil down there, knowing they will die. Why would he want Earth to die?

Brad Premium member

Chosen answer: The General does not want Virgil to fail. The main reason he wants to fire DESTINI is because they have just found out that the core is actually a lot thinner than they originally thought, which means, as Zimsky stated, the amount of explosives they brought in Virgil would not be enought for their original idea of one blast. Also stated by Zimsky, what happened with the core and DESTINI was just like a heart and an electric shock. If an electric shock can stop a heart and also restart a heart, then DESTINI has a chance of restarting what it stopped.

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More for The Core

Quotes

Dr. Josh Keyes: So what's this about then?
FBI Agent: We don't know. You have higher security clearance than us.
Dr. Josh Keyes: I have security clearance?
FBI Agent: Yes sir, we're just here to take you to your jet.
Dr. Josh Keyes: I have a jet?!

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Mistakes

The geodes occurring in the mantle during the film are impossible in two ways. Firstly, there are no gaps at those depths. The pressure is approximately 3.5 million times surface pressure, and it is not feasible that such structures could form, let alone be maintained. Secondly, the crystals inside the geodes are described as amethysts. Amethysts are a purple variety of quartz, and as any undergrad geology student could tell you, there is no quartz in the mantle, it simply is not stable at such high temperatures.

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Trivia

If you look closely with time-frame advance during the pigeon scene you will see a fish "flying" into a window instead of a pigeon.

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