美国故事 SENEWS-2007-0915-FEATURE

Now, the Special English program American Stories. Our story today is called Luck. It was written by Mark Twain. Here is Shep O'Neal with the story. I was at a dinner in London given an honor of one of the most celebrated English military men of his

VOA慢速英语2012 AMERICAN STORIES - Short Story: 'Luck' by Mark Twain

AMERICAN STORIES - Short Story: 'Luck' by Mark Twain SUSAN CLARK: Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story today is called Luck. It was written by Mark Twain. Here is Shep ONeal with the story. (MUSIC) SHEP ONEAL: I was a

VOA慢速英语2016--'Luck,' by Mark Twain

'Luck,' by Mark Twain Our story today is called Luck. It was written by Mark Twain. Here is Shep ONeal with the story. I was at a dinner in London given in honor of one of the most celebrated English military men of his time. I do not want to tell yo

VOA标准英语2011--Short Story: “Luck” by Mark Twain

SUSAN CLARK: Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story today is called Luck. It was written by Mark Twain. Here is Shep ONeal with the story. (MUSIC) SHEP ONEAL: I was at a dinner in London given in honor of one of the mos

VOA慢速英语2018--'Luck,' by Mark Twain

Our story today is called Luck. It was written by Mark Twain. Here is Shep ONeal with the story. I was at a dinner in London given in honor of one of the most celebrated English military men of his time. I do not want to tell you his real name and ti

SSS 2008-08-26

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Don't be fooled by those big bovine eyes and the mouth slowly chewing cudcows have a magnetic personality. At least thats the claim made by German researchers in the

【英语时差8,16】在考试时保持冷静(1)

Learning to Keep Your Cool during Tests Have you ever felt so anxious during an examination that you couldnt even put down the answers you knew? If so, you were suffering from what is known as test anxiety. According to psychologist Ralph Trimble, te

VOA慢速英语20060128b

AMERICAN STORIES - LuckBy Mark Twain Broadcast: Saturday, January 28, 2006 Announcer: Now, the Special English program, AMERICAN STORIES. (MUSIC) Our story today is called Luck. It was written by Mark

Luck by Mark Twain

Luck by Mark Twain Our story today is called Luck. It was written by Mark Twain. Here is Shep ONeal with the story. I was at a dinner in London given in honor of one of the most celebrated English military men of his time. I do not want to tell you h

英语听力：自然百科 地球力场 Earth's Force Field—2

Radiation causes damage at the most fundamental level. It mutates the blueprint of life, DNA. Earth's magnetosphere is our crucial defense. It's so fundamental to our evolution and continued existence that the race is on to understand why it's changi

英语听力：自然百科 地球力场 Earth's Force Field—16

During its magnetic cycle, the Sun undergoes periodic changes in activity. Every 11 years, it enters solar maximum. This 11 years cycle of solar activity has peaks where theres lots of solar storms. And right now where the sun is taking a little napp

英语听力：自然百科 地球力场 Earth's Force Field—12

Six years later, they come to believe these light flashes are the results of high energy, heavy cosmic rays penetrating the spacecraft and the crew members' eyes. These/ protons or electrons, just very, very high energy, ripped / part of atoms, sprin

英语听力：自然百科 地球力场 Earth's Force Field—15

By analyzing thousands of lava samples, geophysicists discover/ that the Earth's magnetic field has reversed over 18,000 times in the last 20 million years. On either side of these reversals is a long period of dramatically reduced field strength. Du

英语听力：自然百科 地球力场 Earth's Force Field—5

If we could flip a switch and just turn off the Earth's magnetic field, it will take about 15,000 years to disappear, based on the rate of decay of the field that we've seen over the last 150 years. It's currently decaying at a rate that would see an

英语听力：自然百科 地球力场 Earth's Force Field—3

In polar regions where the magnetic field is / weakest, auroras glow in the sky. These dazzling displays of colored lights form when solar particles slam into gases in our atmosphere causing them to glow. The stronger the solar wind, the more dramati

英语听力：自然百科 地球力场 Earth's Force Field—4

Scientists believe that the South Atlantic Anomaly, is a sign of a global decline in the magnetic field. Evidence of this comes from a surprising source. Dr. Mimi Hill uses pottery to uncover the secrets of earth's magnetic past. Ancient pots tell us

英语听力：自然百科 地球力场 Earth's Force Field—8

Easily confused by this idea, there has a big thawed iron inner core, so that I think it's just the bar magnet, just permanent magnet frozen in nad, and that's where causes all the magnetic field. But it's too hot inside the Earth, that can't happen

英语听力：自然百科 地球力场 Earth's Force Field—9

As the vast sphere reaches / maximum speed, something incredible happens. Huge lines of magnetism arc in and out of the model core. Well, we can't see the magnetic field coming out of the experiment, we can measure them, we can put many different mag

英语听力：自然百科 地球力场 Earth's Force Field—10

Larry Newitt from the Geological Survey of Canada charts the movement of the magnetic North Pole as it wanders the icy reaches of northern Canada. To determine where the magnetic pole / is, we can't rely on one single observation. What I try to do is

Magnetic Bubbles Detected at Edge of Solar System

The latest data from the twin Voyager spacecrafts suggest the outer edge of the solar system is not smooth but filled with giant magnetic bubbles. Scientists say the turbulent bubbles are the result of the interaction between the Suns magnetic field