What that circulation means to us human is that water is a moving target. We constantly have to seek it out in this endless cycle and intercept it wherever and whenever we can. This quest depend on water has played a defining role in human history. T...
Let's look first. The fresh water that we depend on begins its life in the oceans. As the sun's rays beat down on the surface of the sea, they heat the water molecules until some evaporate. It's the start of an extraordinary journey. Here with water...
Out there is a river valley that's been carved into the rock. It's been carved by running water, just flew down here smoothly off this rock bed and then cascaded down to the valley north there. Six thousand years ago, that was a big river. Satellite...
The center of the Sahara Desert in North Africa, one of the driest places on earth. I'm over six hours drive from civilization. Temperatures here regularly reach 100 degrees Fahrenheit, but there's less than half an inch of rainfall each year. Ah,the...
Of all our planet's forces, perhaps none has greater power over us than water. For me, water is the most magical force on earth. The presence of water shapes, renews and nourishes our planet. Oh, my God ! You get all wet there! It's our planet's life...
Water对人的身体来说是非常重要的。在英语里，有一些和water有关的短语非常奇怪但又很形象。下面，就让我们就看看其中三个和water 有关的表达吧。 1. To hold water 站得住脚，说得通 按字面解释...
Students Invent Water Purification Disc The lab operates like a kitchen. They add several ingredients. Then they mix, weigh, press and bake them. What's created is called a MadiDrop - a ceramic disc infused with silver. When dropped in water, silver...
Scientists Ponder 'Epoch' of Damage to Global Water System Scientists say a new geologic epoch has begun whereby humans are causing major damage to global water systems. They warn of a planetary transformation comparable to the retreat of the glacier...
AS IT IS 2013-05-01African Elephants, The Information Revolution and Nigeria's Safe Water From VOA LEARNING ENGLISH, welcome to As It Is! Hello, Im Steve Ember. Today on our program: African elephants facing their worst crisis in yearsa revolution in...
Watertown Bounces Back Childhood innocence just a block away from where police captured the alleged marathon bomber. Lemonade costs 50 cents a cup, but customers have been donating lots of bills. People give us extra tips because they say we're cute,...
