They were consistently dug as limestone quarries and by the 18th century, the caving in of some of these quarries posed safety threats, so the government ordered reinforcing of the existing quarries and dug new observation tunnels in order to monitor and map the whole place.

Here's a piece of limestone.

After the limestone rocks, what?

Those white cliffs are a dense Cambrian limestone.

And it's just limestone, nothing really special about it.

Would it give this block of limestone new properties?

Parks old quarries that they were transformed into parks.

The core comes up as these cylindrical tubes of limestone.

And it's different than this limestone, you can see that.

And that's not snow that's what the white limestone looks like.

Now a block of limestone, in itself, isn't particularly that interesting.

We don't just want limestone dumped everywhere in all the pretty canals.

On the trail we took just before we reached the limestone rocks.

Quarries once made the nature, and sometimes we took this and we transformed.

I headed up hill just past the big limestone rocks we saw that Sunday.

Ehud escaped while they waited, and passed beyond the quarries, and escaped to Seirah.

Ehud escaped while they waited, and passed beyond the quarries, and escaped to Seirah.

1. Underground, in mines or quarries, or in construction activities involving manual labour and

And Ehud escaped while they tarried, and passed beyond the quarries, and escaped unto Seirath.

And Ehud escaped while they tarried, and passed beyond the quarries, and escaped unto Seirath.

So it would all be built in stone, in French limestone, except for this metal piece.

So the bones were moved from the cemeteries into the quarries, making them into the catacombs.

And Lost City was characterized by these incredible limestone formations and upside down pools. Look at that.

Thousands of children are working as prostitutes, porters and workers in quarries, slaughterhouses, construction and brick factories.

And so here the protocells are depositing their limestone very specifically, around the foundations of Venice, effectively petrifying it.

But gradually, as the buildings are repaired, we will see the accretion of a limestone reef beneath the city.

But imagine what the properties of this limestone block might be if the surfaces were actually in conversation with the atmosphere.

18. In 1994, master plans were announced for the establishment of six quarries covering a total area of 16 square kilometres.

Ray It was Crease Limestone, and that was produced by sea creatures 350 million years ago in a nice, warm, sunny atmosphere.

The Kalahari Desert in the east and north is characterised by thick layers of the terrestrial land and limestone and scarcity rainfall.

Many of these stones are used in settlement construction.26 The clouds of white dust produced by the quarries pose certain health risks.

And if you look even closer, you'll see, in that limestone, there are little shells and little skeletons that are piled upon each other.

This is our protocell technology, effectively making a shell, like its limestone forefathers, and depositing it in a very complex environment, against natural materials.

34. There are literally thousands of stone quarries on the West Bank, supplying 80 per cent of the material needs of Israel s construction sector.

Other damage to the environment came from factories and stone quarries, especially those in the vicinity of Tulkarm, near water source and water spring areas.

This first of the two strategies is like a hunter, exploring a forest in search of a particular quarry, who finds other quarries along the way.

Stone quarries and other places in which explosives are used are subject to particularly close control with regard to the storage, transport and protection of explosives.

One of the most important of the quarries is the Wadi Teen quarry in Tulkarm, which covers a total area of 9,685 dunums, distributed as follows

So, all the ideas about how to transform through design old quarries and open universities and botanic garden all of it's related to how we teach the children.

And architect Christian Kerrigan has come up with a series of designs that show us how it may be possible to actually grow a limestone reef underneath the city.

I love how they were able to preserve most in everything that makes you feel close to nature butterflies, man made forests, limestone caves and hey, even a huge python.

Qasr Al Hayr East The Umayyad limestone castle of Qasr Al Hayr East is in an isolated location in the middle of the Syrian Badia, 100 kilometres northeast of Palmyra.

The network trades, on an ongoing basis, in the explosives openly by falsely professing in public that the explosives are used exclusively for blasting rocks and quarries to obtain building materials.

Farming and other economic activities, such as quarries and small industries operating in the buffer zone, are allowed, provided that ownership is proven and that the activities present no security threat.

The drill perforated the limestone to a depth of two metres without the use of lubricants or cooling fluids that might have contaminated the environment of the pit, and successfully collected six samples.