Name: National Geographic: Big,Bigger,Biggest:Dam S02E08
Uploaded: 2014-05-02T17:03:34.000Z
Duration: 46 min 54 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

from the waters in the Yangtze River in China

rises the biggest concrete structure a plan

the Three Gorges Dam is over two kilometers long

it has taken forty thousand workers over 70 years to build

twice as much as cool the nuclear power stations in Britain put together

in the heart it leaves lies a major technological innovation

one by one traveling up the scale will reveal the incredible stories behind

and the inventions that allowed them to produce

China is one fastest-growing economies on

to fuel the need to mix ever accelerating industry nation needs more

much in this would be provided by an enormous

down spanning the mighty Yangtze River in central China

access to capture this amazing feat of engineering

before they could start building 3 largest the Chinese first had to divert

River which is almost two kilometers wide and move

over a million people from the area about to be flood

Three Gorges Dam is the biggest hydro-electric project in the world

this damn news 28 million cubic meters a cock maybe one way to look who's to say

saw solid hyper concrete a meter diameter

the chinese authorities think it's worth the effort as the Three Gorges Dam will

to understand how the Three Gorges Dam can produce so much

and a modest stream in Northumberland the power behind the world's

in the eighteen hundreds while Britain is at the heart of the Industrial

this house is the last word in modern lived

it belongs to Lord Armstrong an entrepreneur

and obsessive invent he has fitted his house with state-of-the-art technology

including central heating and mechanical devices that drive elevators

but there is one place in the house where modern technology

is sadly lacking as historian and Tony Burke

real pride and joy the picture gallery for wonderful Victorian paintings

bit gloomy even in daylight what he really wanted to do

was to bring his guests here in the evening by the flicker candle light

our electric lights and away to power them

how do you generate electricity that something was known for

fifty years was Michael Faraday a given the secret you move

a magnet in relation to call on work bundle set appear

on the end this disc and right here is a call love one now

if I make this spin mission to that we should

yet getting reading on a meter we are definitely

electric handsome copper wire make a lot of electricity

you need much bigger Kate and this is what Armstrong board

Thomson vortex turbine agran peace equipment

the thompson turbine needs a huge volume of fast-flowing water to drive the road

is a tiny stream trickling through his estate

Armstrong builds and Perth wall nearly ten meters high

this massive water pushing down increases the pressure at the moment

Armstrong channels this high pressure water down through a pipe

he injected into a Thomson to her by with Tara

this in turn road takes a shot lead to a generator

the produces four thousand wats electricity

for Armstrong this is only the first step to enlightenment

now he needs to get the electricity from the turbine house at the bottom it is

all the way to his picture gallery over a kilometer away

Armstrong connect two strands of the copper wire to the generator