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Spell of the North:The Rush for Alaska II

Abstract: By the end of May 1742， everything was ready for Bering's expedition. The two newly constructed ships set sail —...

Country: America Duration: 40 mins Viewers: 683

The History of Bread

Abstract: Bread plays a vital almost excessive role in people's daily diet. It is a symbol of shared food. Then do you know som...

Country: Australia Duration: 25 mins Viewers: 677

America's Special Days — President's Day

Abstract: On 3rd Monday of February， Americans honor two of their nation’s greatest presidents: George Washington and Abr...

Country: America Duration: 15 mins Viewers: 659

Sex Hormone and Contraceptive

Abstract: Scientists were always trying producing safe contraceptives. The German chemist Adolf Butenandt became one of the fir...

Country: Germany Duration: 15 mins Viewers: 659

Spell of the North:The Rush for Alaska I

Abstract: Follow footsteps in the snow, through a crystal kingdom of exalted beauty, here you will find chilling tales of heroi...

Country: America Duration: 20 mins Viewers: 642

The Mutation Theory of Cancer

Abstract: Cancer can happen to anyone. For a long time， man has no idea of what causes cancer. Since cure is out of the questio...

Country: Germany Duration: 15 mins Viewers: 637

The Theory of the Nerve Cell

Abstract: Some of human's behaviors are dominated by the nerve cells rather than by the brain. But scientists didn't know the e...

Country: Germany Duration: 15 mins Viewers: 637

Becoming a Slave in Brazil

Abstract: Between the 16th and 18th centuries， approximately eight million Africans brought from the west coast of Africa to th...

Country: America Duration: 12 mins Viewers: 635

The Hoover Dam

Abstract: Founded only 100 years ago， the city of Las Vegas owes its current glamour to a natural disaster. In March 1905， heav...

Country: Germany Duration: 15 mins Viewers: 623

Spectral Lines

Abstract: In 1664 or thereabouts， Isaac Newton shone sunlight through a prism and discovered that the different colours of the ...

Country: Germany Duration: 15 mins Viewers: 600

The Blood Group

Abstract: Before people were cognizant of blood groups， only about 50% of blood transfusions produced the right result and doct...

Country: Germany Duration: 15 mins Viewers: 599

Anatomy

Abstract: Leonardo da Vinci was a universal genius. In Leonardo an interest in science went hand in hand with an exceptional gi...

Country: Germany Duration: 15 mins Viewers: 584

Foucault's Pendulum

Abstract: Although Jean Foucault had never obtained a university degree， he became one of the most important scientists of his ...

Country: Germany Duration: 15 mins Viewers: 583

Cologne Cathedral

Abstract: Cologne Cathedral is the most impressive Gothic structure in Germany and the breathtaking hallmark of the city. Compl...

Country: Germany Duration: 15 mins Viewers: 577

Theory of Macromolecule

Abstract: The famous German chemist Herman Stotin discovered macromolecule in the year 1921. However， his theory was disagreed ...

Country: Germany Duration: 15 mins Viewers: 573

Electrocardiogram

Abstract: With the help of a device normally used in telegraphy， Einthoven developed a measuring instrument which enabled him t...

Country: Germany Duration: 15 mins Viewers: 565

Power Generation

Abstract: Faraday's most important invention was and is the generator. Instead of weak and expensive batteries， the generator o...

Country: Germany Duration: 15 mins Viewers: 561

The Antisepsis

Abstract: In the past， people thought fester was normal and the pus was considered to be "commendable". Under this circumstance...

Country: Germany Duration: 15 mins Viewers: 529

Einstein: E=mc2

Abstract: Einstein is the most important physicist of the 20th century and the first scientific superstar. It was for this aspe...

Country: Germany Duration: 15 mins Viewers: 311

Life in Ancient Egypt

Abstract: In ancient times， Egypt was a flourishing kingdom and one of the earliest known civilizations， producing magnificent ...

Country: Australia Duration: 28 mins Viewers: 295

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