Wild Europe - Genesis 肇始之初- 10

It's the fossilized resin of ancient pine trees. And trapped within it, are perfectly preserved souvenirs, each fragment helping to build a picture of an ancient world. This resin has also trapped som

Wild Europe - Genesis 肇始之初- 9

..As they died they slowly sank, settling in layers on the seafloor. Through time they formed these cliffs in an ocean that was up to 300 meters deeper than we see it today. Just imagine how London mi

Life in the Freezer 冰雪童话 - 9

The male usually leads. If the female is sufficiently impressed, the pair seal their relationship with a vocal duet . King Penguin rookeries are very busy places. Every morning at about 6:00, the adul

Horizon - Life On Mars 火星生命 - 11

One of these wavelengths corresponds to hydrogen, another wavelength would be iron. Another wavelength would be oxygen. And so you go to the part of the spectrum you are interested in and you see you'

Horizon - Life On Mars 火星生命 - 9

The ground here is permafrost, a mixture of soil and ice frozen together. A group of Russian scientists have teamed up with NASA to drill down into it in search of microorganisms. It's work that's bee

Horizon - Life On Mars 火星生命 - 10

But they never got there. The first disappeared into deep space. Another missed its target when its coordinates were confused. One NASA control center was working in metric, the other in feet and inch

Horizon - Life On Mars 火星生命 - 12

But there was something even better. Odyssey may not just have found ice. There may also be liquid water, and that means, there could be living creatures there too. Right now, there might be liquid wa

Horizon - Life On Mars 火星生命 - 13

Life on Earth is basically proteins and DNA, so we can wonder if there is life on Mars will also be DNA and proteins, the same type of DNA, the same type of proteins. One might think that DNA is such

Horizon - Life On Mars 火星生命 - 14

Well, hearing that Odyssey had found subsurface water on Mars was enormously exciting for somebody who is involved in planning to send humans to Mars. Water has a number of important uses for us. At t

Horizon - Life On Mars 火星生命 - 15

Of course, any terraforming is still a long way off. The next few expeditions to Mars will definitely be made by machines. NASA, are sending 2 rovers, capable of travelling over 100 meters a day in se

The Ghost In Your Genes - 15 基因外遗传现象

The work of these scientists is at last throwing a spotlight onto the mysterious hidden world of epigenetics. They appear to show that the lives of our ancestors have a capacity to affect us directly.

The Ghost In Your Genes - 14 基因外遗传现象

The impact of a famine being captured by the genes in the eggs and sperm, and a memory of this event was being carried forward to affect the grandchildren, generations later. We are changing the view

The Ghost In Your Genes - 13 基因外遗传现象

They discovered that when a famine was able to trigger an effect was different for the grandmother than the grandfather. The grandmother appeared susceptible while she herself was still in the womb, w

The Ghost In Your Genes - 11 基因外遗传现象

But could this effect be transmitted to their offspring? They found nearly 200 women of whom a number had actually been in the Twin Towers. About half of them developed post-traumatic stress disorder.

The Ghost In Your Genes - 10 基因外遗传现象

Our studies had really convinced me that it were the later experiences of the child as the child was growing up bombarded with years and years of, em, symptoms from the parents that accounted for the

The Ghost In Your Genes - 9 基因外遗传现象

The email was sent by Olov Bygren. He was studying the population records of an obscure town in northern Sweden, Overkalix. What made these records unique was their detail. They recorded births and de

The Ghost In Your Genes - 12 基因外遗传现象

Olov Bygren was looking to see if poor nutrition had an effect on health when he stumbled on something curious. It appeared that a famine could affect people almost 100 years later even if they never

FBI - 揭密联邦调查局 - 13

Cantrell and 11 other hackers are apprehended. Thanks to the FBI's secret weapon, the magic box and agent Mike Morris, the nation's first computer detective, dozens of cyber crooks are taking the info

FBI - 揭密联邦调查局 - 14

They had assault weapons, they had some AK47s, they had a Louis machinegun that they were mounting on an armored car they were building. They had plenty more mine type of devices, they had hand grenad

FBI - 揭密联邦调查局 - 12

Necessity being the mother of invention, Morris sets out to create a secret device that can track every keystroke from a cyber crook's computer. It then became a matter of finding the technology that