Histoire des mesures de la vitesse de la lumière

How four iconic British-built trains revolutionised rail travel and inspired incredible railway projects the world over.

Viki, Köpi & Henkka - tieteen armoilla

Architectural salvage expert Drew Pritchard looks back at the most eccentric characters, the hardest hagglers and the most extraordinary places he's hunted for antique treasure. Drew gives us the inside track on his wheeling and dealing, the stories behind his picks, as well as top tips about salvaging and how to get the best deals.

Kun Suomi muuttui - levottomat ajat 1961–1981

Summer 1943: Hitler engages in a decisive battle in Kursk to win the war in the East. This is without counting on the pugnacity of the Red Army and the Allied intervention in the West. Month after month, the noose tightens on the Nazi tyrant who refuses to admit defeat and precipitates his country in its fall.

In this documentary series, interspersed with historical reconstructions, Tom Waes investigates what has happened since the arrival of the first Homo sapiens, on the 14,000 square kilometers that we today call Flanders.

Renowned author and journalist David Lagerkrantz, along with historians, forensic scientists and investigators, sheds new light on Swedish murders in the past.

Inside NASA's Innovations takes you behind the scenes with one of the world's leading technology innovators. Find out what it takes to collaborate with NASA in developing the next breakthrough in space exploration.

At the world-famous Explorers Club, a gathering place for trailblazers, club member Josh Gates recounts the greatest adventures of all time.

Chris Barrie's Massive Speed follows on from the series Massive Engines and Massive Machines , both of which were also presented by petrolhead Chris (of Red Dwarf fame). In Massive Speed Chris turns his attention to the evolution of machines designed purely to achieve maximum speed. He travels the world searching for the most thrilling, speed-packed machines he can find and introduces audiences to huge engined bikes, planes, trucks and boats that battle it out in power races. Whether it's crossing an otherwise impenetrable snow drift, desert or swamp at the speed of an Olympic sprinter or cutting through the atmosphere at six times the speed of sound, Chris tells the stories of the greatest achievements of speed design and engineering. In each episode Chris follows the evolution of a specific genre of machine by testing them and reveals both the classsic stories and secret histories that surround each of them.

The specter of drug trafficking haunts Europe. Struggling with ultra-violent criminal groups that control the vast majority of cocaine trade, European police forces are overwhelmed. The epicenter of all this trafficking: the Netherlands. A nation at the forefront of international trade and drug policy. This two-part film delves into the origins of European drug trafficking through the unique history of the Kingdom of the Netherlands.

Chris Packham uses groundbreaking science and brand-new behaviour to delve deep beneath the skin and discover the unique features that have made certain animal groups successful.

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

In four chapters, largely based on and illustrated with archaeological finds and sites, Neil Oliver explains how, as far as is known, the Iron Age Celtic tribes known as the Ancient Britains evolved and entered European civilization. Their internecine tribal phase was warlike and partitioned. Overseas contacts, especially metal trade, brought wealth and progress. Ultimately, it attracted the superior Roman empire, which would conquer and pacify Britain into a province, like Gaul shortly before, but Caesar's invasion wasn't the definitive annexation yet, that was left to emperor Claudius; even afterward some Celtic traits and even rebellions remained.

This is the story of a power struggle between two men - one fictional, and one real. In one corner is the master of crime – the greatest detective who never lived, Sherlock Holmes. In the other is writer, physician and spiritualist leader Sir Arthur Conan Doyle. Lucy Worsley explores the extraordinary love-hate relationship between author and creation.

Professor Brian Cox asks the biggest questions we can ask. Are we alone? Why are we here? What is our future? Join him in a stunning celebration of human life as he explores our origins, our place and our destiny in the universe.

About Adolf Hitler's time in Germany. On January 30, 1933, Adolf Hitler was appointed Chancellor of Germany and his tenure in power lasted for more than twelve years. It began with a standing ovation and ended after a world war in which 50 million people were killed.

How the constitution of the largest Democratic Republic in the world was created.

The stories behind innovations such as TV, radio, phones, airplanes, motorcycles and power tools as well as the inventors including Nikola Tesla, William Harley, Alexander Graham Bell, Duncan Black and Alonzo Decker.

The adventures of Josh Gates as he investigates unsolved iconic stories across the globe.