Discover "Once Upon a Time... Solar Impulse" !
To know more about the first round the world tour on board a solar airplane copiloted by two modern explorers Bertrand Piccard and André Borschberg, it’s here !
"Once upon a time... the Explorers" is a counterpart to "... the Discoverers", which took us along the route to discovery of scientific ...Read more...
It doesn’t tell us the time, it tells us the period of history and the year when the action happened. Sometimes it plays a part in events. You will ...Read more...