Histoire des mesures de la vitesse de la lumière

In the spring of 1798, Napoleon set out with 38,000 men and 10,000 sailors to conquer Egypt.

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.

Documentary on Antoine de Caunes, a French television presenter, comedian, actor, journalist, writer and film director.

From dangerous explosives and deadly curses that put everyday people at risk, to treasures found in the unlikeliest of ways, each episode digs into the people, the places and historical significance of these discoveries. And sometimes just being in the right place at the right time can make history…because nothing stays hidden forever.

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.

A historical exploration about the eruption of Vesuvius in 79 A.D. and the preserved Roman city it left behind.

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

Since the Big Bang 13.8 billion years ago, light has sculpted the cosmos. It traverses the void, interacts with matter, and dances with shadows. It multiplies and proliferates, offering the world ever more complex and luminous structures. If it could speak, what would it tell us?

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.

MythBusters is a science entertainment television program created and produced by Australia's Beyond Television Productions for the Discovery Channel. The show's hosts, special effects experts Adam Savage and Jamie Hyneman, use elements of the scientific method to test the validity of rumors, myths, movie scenes, adages, Internet videos, and news stories.

Carl Sagan covers a wide range of scientific subjects, including the origin of life and a perspective of our place in the universe.

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.

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

Finland is Queer - Queer history of Finland

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

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

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.

Every day we are inundated with information. Can facts still be distinguished from fables? With a nod to today's 'do your own research' internet culture, Marijn, Joep and Tim invent their own experiments, of which they are part. They have one goal: to find out the truth once and for all.

The naturalist visits uncharted territory in pursuit of new discoveries. Steve Backshall takes on physical challenges, encounters extraordinary wildlife and meets remarkable people.

Days that Shocked the World explores the most iconic disasters of the last 50 years, combining eye-witness testimony with powerful archive footage, to learn how each tragedy changed both the lives of individuals and the world. The anthology series features one- and two-part episodes that coincide with key anniversaries of these defining global events: including the Challenger Space Shuttle explosion in 1986, the Chernobyl nuclear disaster of the same year, the 2000 Air France Concorde crash, the 9/11 terrorist attacks in 2001 and the 2011 Fukushima earthquake and tsunami.