1. This is something built 70 years ago. It seems to have been modernized and modified. Since the base is a balance (actually a spring scale), made of copper and purely mechanical, why bother to freeze it and make things stuck or welded directly Isn't it over? It is not difficult to pull more than a dozen tanks of liquid nitrogen in, and other equipment is not difficult. Why choose this unsafe solution?
2. The sensitivity of the balance: If a person breaks in, and he is still a thin person, several tens of kilograms, and it can trigger its insurance mechanism, then its weight sensor must be very sensitive, and the trigger weight is far less than the weight of a thin person. In order to be insured, even the entry of a cat or dog will trigger it. Such a huge purely physical machine is difficult to achieve, especially when its basis weight is already huge (the whole room has multiple), plus the storage items (such as a lot of money, gold, diamonds)
3. Things that can be kept: paper objects or anything that is not waterproof can not be put in, unless other water-removal measures are taken, otherwise it will be wiped out by soaking in water. Put the gold, the gold is so heavy, how much the whole scale can withstand weight?
4. The problem of the insurance mechanism: The anti-theft mechanism is to flood the contents, but once it is full, open the gate and release the water immediately. How to ensure that the thieves will be drowned? Assuming that the empty room is filled with 1000 tons of water, then add The storage items in the upper part, plus three people, will reach the drainage weight in advance, if 10 people go in? It doesn't feel too safe.
5. Once the vault is filled with water and then continue to fill it, it will burst the vault (the water comes from above, there may be a drop of more than ten meters, and the pressure is still considerable), then the force formed by blasting can not be reached? You don't need to blow up the wall (the outside is muddy, solid), just blow up the drain. The drain is in the middle of the room. It's quite big. Don't worry about flushing out the contents by the way?
6. Under normal circumstances, the weights of the people who put things in, and the things that go in fluctuate. How can we ensure that they are not triggered during the operation? How did you do it 70 years ago? Is there a mechanism that locks and fixes it first, then puts things in, then adjusts the reference weight of the scale, and then unlocks the mechanism? If so, does this institution still have it? How do you pick and place things now? They use fingerprints and keys to open the door. They didn't break in. If they can't enter in this way, the protection mechanism cannot be avoided. Is it because the operating procedure is wrong and the alarm should be called?
7. There seems to be nothing else in this vault except for these boxes of things?
8. As I just said, it seems that the gap between the water tank and the vault is still a little bit, otherwise the water column will not hit the trapeze, and such a large pressure will flow upstream from the pipe? Unlikely, right? From a strategic point of view, why didn't you simply block the connection pipeline between the water tank and the vault in advance? This water tank doesn't seem to be difficult to get in, because the traitor escaped from this empty water tank.
9. For pure mechanical equipment 70 years ago, before modernization and modification, such a huge and complicated structure (opening and closing valves, including the locking control mechanism I just assumed), must be maintained, and maintenance requires drawings and maintenance manuals. Ah, if there are drawings and maintenance manuals...you know
10. Liquid nitrogen freezes, it has been frozen to the ground and it freezes, does it melt so quickly? The basement itself has a low temperature and should not fail so quickly. From the movie, it is the ground in the center, that is, where the objects are frozen, and where is it? Drain!
11. Such a large machine has been modernized and modified, and the base will be leaked, completely undefended? ? ? Let alone listen to the radio there? Have a signal? ?
12. If it is frozen to this level, it should break with a sledgehammer, right? The structure without this scale is going to collapse from the lower support and the upper vault, right? It's better than direct blasting at the bottom, collapse the floor, pick it up below, and run away.
13. There is no one to guard such a complicated and long road to the vault? Such an important vault?
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