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originally posted by: Lucidparadox
The speed isn't an issue at all to whomever said that.
233m/s is half the speed of a bullet.
originally posted by: Flyingclaydisk
Whenever I see one of these stories I am instantly dubious. One has to ask themselves why anyone would ever do this??
Underground bunkers are one thing, but underground cities and hundreds/thousands of miles of tunnels makes no sense. First of all, just the sheer cost alone to build something like this is not even measurable. Secondly, the sheer number of people and material it would require to construct it, and support it, would be such that it would be an impossible secret to keep. Too many people would know. And lastly, who would it benefit? There's only so many elites and politicians. If the idea was to preserve the human race from some catastrophic event like a nuclear Armageddon, then what good is it if no one knows it's there, or where to go? You certainly won't be able to tell the masses after such an event, so unless they know about it beforehand what good does it serve?
In Guatemala, 800 kilometres worth of tunnels have been mapped underneath the Mayan pyramid complex at Tikal. Researchers have suggested that this may provide an explanation for how half a million Mayans escaped the decimation of their culture.
We know that every 200 million years on Earth is a global disaster with the disappearance of up to 80 percent of the fauna and flora, and the last is on the border of the Eocene was just 30 million years ago with the fall of the next asteroid.
Smaller breaches of life on Earth in the form of small asteroids falling and associated earthquakes, tsunami, volcanic eruptions, floods surge and were 100, 41 and 21 thousand years.
Perhaps the ancient civilizations knew about these cycles and wishing to avoid their effects, and created throughout the world network of tunnels and underground structures, hidden in them to be independent in their activities from occurring on the surface.
originally posted by: crayzeed
Local tunnels around a specific location I'll grant you that but over distances? Naah. Think on this one. America is criss crossed by fault lines, any tunnel going near these is doomed before it starts. Now look at all the fault lines and tell me how long any tunnel could be. Oh, I almost forgot the volcanoes, Mount St Helens, Yellowstone, gotta keep well away from those.
The tunnel industry has considered that tunnels, especially tunnels in rock, are naturally resistant to earthquake action, including faulting, shaking, deflection and ground failure. As the number of case histories of tunnels subject to earthquake action has increased, the industry has started to recognize that, although tunnels in rock have good resistance against earthquakes generating peak ground accelerations (PGA) lower than 0.5 g, it is important to include the dynamic forces and displacements generated by seismic ground motions in the design process to obtain a more reliable design.
Now it just looks childish and everyone laughs at you because they know you're just playing out your own little self-important fantasies. Don't embarrass yourself. It's not the 90s anymore.
originally posted by: AugustusMasonicus
originally posted by: Lucidparadox
The speed isn't an issue at all to whomever said that.
233m/s is half the speed of a bullet.
The 233m/s number was calculated incorrectly. The quote from the other thread was 14,000mph which converts to 6,258m/s. This is absurd and not possible.
originally posted by: SeaWorthy
a reply to: face23785
Now it just looks childish and everyone laughs at you because they know you're just playing out your own little self-important fantasies. Don't embarrass yourself. It's not the 90s anymore.
Maybe you should speak for yourself and not the entire population of ATS. There are many people who know if secrets exist it is because fools laugh when information is leaked and so they keep an open mind!
originally posted by: Lucidparadox
In a vaccuum chamber using a rail gun type system, those speeds are definitely achievable.
I don't claim to speak for all of ATS. There are plenty of gullible people here who will believe you.
You made some baseless claims so you can feel important, that's all.
originally posted by: maxey
Where did all of the spoil go ?. The channel tunnel is only 31 miles long, and that created a huge amount of dirt.
Dug into the Bethany Falls limestone mine, SubTropolis is, in places, 160 feet (49 m) beneath the surface. It has a grid of 16 ft (4.9 m) high, 40 ft (12 m) wide tunnels separated by 25 ft (7.6 m) square limestone pillars created by the room and pillar method of hard rock mining. The complex contains almost 7 miles (11 km) of illuminated, paved roads and several miles of railroad track. Currently, more than 6,000,000 square feet (560,000 m2) is occupied and 8,000,000 square feet (740,000 m2) are available for future expansion.
Since starting operation in 1905, the El Teniente mine south of Santiago, Chile, has only continued its expansion. Located in the in the Andes mountain range, the world's largest copper mine continues its growth by digging ever deeper to extend its productive life. Overall, the mine has nearly 2,000 miles of underground tunnels and almost 1,000 miles of underground roads.