Vilayanur Ramachandran tells us what brain damage can reveal about the connection between celebral tissue and the mind, using three startling delusions as examples.
Neuroscientist Vilayanur Ramachandran outlines the fascinating functions of mirror neurons. Only recently discovered, these neurons allow us to learn complex social behaviors, some of which formed the foundations of human civilization as we know it.
Horizon uncovers the secret world of our dreams. In a series of cutting-edge experiments and personal stories, we go in search of the science behind this most enduring mystery and ask: where do dreams come from? Do they have meaning? And ultimately, why do we dream?
What the film reveals is that much of what we thought we knew no longer stands true. Dreams are not simply wild imaginings but play a significant part in all our lives as they have an impact on our memories, the ability to learn, and our mental health. Most surprisingly, we find nightmares, too, are beneficial and may even explain the survival of our species.
Some writers have proposed that intelligent extraterrestrial beings have visited Earth in antiquity or prehistory and made contact with humans. Such visitors are called ancient astronauts or ancient aliens. Proponents suggest that this contact influenced the development of human cultures, technologies and religions. A common variant of the idea is that deities from most, if not all, religions are actually extraterrestrials, and their technologies were taken as evidence of their divine status.
Proponents of ancient astronaut theories often maintain that humans are either descendants or creations of extraterrestrial beings who landed on Earth thousands of years ago. An associated idea is that much of human knowledge, religion, and culture came from extraterrestrial visitors in ancient times, in that ancient astronauts acted as a "mother culture". Ancient astronaut proponents also believe that travelers from outer space known as "astronauts" or "spacemen" built many of the structures on earth such as the pyramids in Egypt and the Moai stone heads of Easter Island or aided humans in building them.
Proponents argue that the evidence for ancient astronauts comes from supposed gaps in historical and archaeological records, and they also maintain that absent or incomplete explanations of historical or archaeological data point to the existence of ancient astronauts. The evidence is said to include archaeological artifacts that they argue are anachronistic or beyond the presumed technical capabilities of the historical cultures with which they are associated (sometimes referred to as "Out-of-place artifacts"); and artwork and legends which are interpreted as depicting extraterrestrial contact or technologies.
The Russian Empire was a state that existed from 1721 until the Russian Revolution of 1917. It was the successor to the Tsardom of Russia and the predecessor of the Soviet Union. It was one of the largest empires in world history, surpassed in landmass only by the British and Mongolian empires: at one point in 1866, it stretched from eastern Europe across Asia and into North America.
At the beginning of the 19th century the Russian Empire extended from the Arctic Ocean in the north to the Black Sea on the south, from the Baltic Sea on the west to the Pacific Ocean on the east. With 125.6 million subjects registered by the 1897 census, it had the third largest population of the world at the time, after Qing China and the British Empire. Like all empires it represented a large disparity in economic, ethnic, and religious positions. Its government, ruled by the Emperor, was the last absolute monarchy in Europe at the time of its demise. Prior to the outbreak of World War I in August 1914 Russia was one of the five major Great Powers of Europe.
Under the Chin dynasty a strong central government was established; provinces replaced feudal states. The empire was extended into parts of south China. The Great Wall was largely completed, protecting China on the north from the Huns.
The Han dynasty rose to power in 202 B.C., and greatly expanded the empire. Conquests were made in south China, Annam (northern Vietnam), and Korea. The Huns north of the Great Wall were subdued. Han conquests, westward as far as present Afghanistan, brought about trade with the Middle East by way of the Silk Road through Central Asia. China exported vast quantities of silk westward, much of it reaching the Roman Empire.
The Han adopted, for those going into government service, a system of examinations based on the Confucian classics. Scholars edited the classics and discovered and copied many old texts. The first Chinese encyclopedia was compiled. Paper was invented. Buddhism was introduced from India.
The Han dynasty was deposed in 220 A.D. There followed nearly 400 years of divided rule and civil war. During 221-65 China was divided into three separate states Wu, Shu, and Wei traditionally called the Three Kingdoms. The country was reunited in 280 under the Western Chin dynasty, but the state collapsed in 316 following uprisings by various non-Chinese peoples, mainly Turkic, Mongol, and Tibetan. In the south small Chinese states continued to rule. China lost its outlying areas, closing the Silk Road. Political disunity was offset by a general cultural advancement, however. Trade was established with southeast Asia. Buddhism became more prevalent, while interest in Confucianism declined.
Unification of China was achieved by the Sui dynasty (589-618). Under the Sui an extensive system of canals was built, interconnecting the Huang He and the Yangtze River. Chinese control was reestablished over Annam and what is present Chinese Turkestan. Also, the Chinese way of life and system of government began to influence Japan profoundly. Contact was made by way of Korea, where Chinese culture had been dominant since earliest times.
Bread, cash, dosh, dough, loot, lucre, moolah, readies, the wherewithal: Call it what you like, it matters. To Christians, love of it is the root of all evil. To generals, it's the sinews of war. To revolutionaries, it's the chains of labor. But in The Ascent of Money, Niall Ferguson shows that finance is in fact the foundation of human progress. What's more, he reveals financial history as the essential backstory behind all history.
Through Ferguson's expert lens familiar historical landmarks appear in a new and sharper financial focus. Suddenly, the civilization of the Renaissance looks very different: a boom in the market for art and architecture made possible when Italian bankers adopted Arabic mathematics. The rise of the Dutch republic is reinterpreted as the triumph of the world's first modern bond market over insolvent Habsburg absolutism. And the origins of the French Revolution are traced back to a stock market bubble caused by a convicted Scot murderer.
With the clarity and verve for which he is known, Ferguson elucidates key financial institutions and concepts by showing where they came from. What is money? What do banks do? What's the difference between a stock and a bond? Why buy insurance or real estate? And what exactly does a hedge fund do?
This is history for the present. Ferguson travels to post-Katrina New Orleans to ask why the free market can't provide adequate protection against catastrophe. He delves into the origins of the subprime mortgage crisis.
Perhaps most important, The Ascent of Money documents how a new financial revolution is propelling the world's biggest countries, India and China, from poverty to wealth in the space of a single generation—an economic transformation unprecedented in human history.
Yet the central lesson of the financial history is that sooner or later every bubble bursts—sooner or later the bearish sellers outnumber the bullish buyers, sooner or later greed flips into fear. And that's why, whether you're scraping by or rolling in it, there's never been a better time to understand the ascent of money.