00:00In India, local workers are digging wells using an ancient method.
00:04A worker...
00:05...stands at the bottom of the shaft, digging in circles around the wall as the soil is...
00:10...removed, the cylindrical wall slowly sinks downward.
00:13At the same time...
00:15Workers above keep laying bricks along the wall to reinforce it.
00:19This process is...
00:20...repeated again and again until the wall finally reaches the water table.
00:23And that's when the well is...
00:25...complete.
00:26This technique is called the sinking method.
00:28Because resources are scarce in some areas...
00:30...and concrete wells can't be built, people came up with this approach.
00:34It may look dangerous...
00:35...but it's actually much safer than digging straight down.
00:38What's interesting is that...
00:40...many modern wells still use the same principle.
00:43Instead of bricks, builders now use...
00:45...precast concrete rings stacked on top of each other.
00:49Excavators dig inside...
00:50...the ring...
00:51...the soil is cleared...
00:52...and the heavy concrete casing sinks under its own...
00:55...weight.
00:56This method makes construction much faster and more efficient.
01:00So let's take a picture...
01:02...by it all right...
01:03...just to remove the power...
01:05...to AS Control.
01:06If not control, just to manage food...
01:08...ищ
01:10...paying hochjal...
01:11...wahahah...
01:13...may out...
01:16...with audience limitations.
01:20...
01:23...hades...
01:27...
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