Tag «national geographic»

Solar System 101 | National Geographic

Solar System 101 | National Geographic

– [Narrator] Our solar system is one of over 500 known solar systems in the entire Milky Way galaxy. The solar system came into being about 4.5 billion years ago, when a cloud of interstellar gas and dust collapsed, resulting in a solar nebula, a swirling disc of material that collided to form the solar …

Earth 101 | National Geographic

Earth 101 | National Geographic

– [Narrator] Earth, the only planet known to maintain life. A product of scientific phenomena and sheer chance. This blue speck in space holds the past, present, and future, of our very existence. (instrumental music) Approximately 4.5 billion years ago, the Earth formed from particles left over from the creation of our sun. Gravity drew …

History 101: The Protestant Reformation | National Geographic

History 101: The Protestant Reformation | National Geographic

– [Narrator] The Protestant Reformation of the 16th century shook the very foundation of Europe’s cultural identity. The Reformation was a revolution of religion in western Europe. Essentially, it was the result of centuries worth of political and social grievances against the Christian Church as it existed. Christianity, which began as a fledgling religion in …

Plague 101 | National Geographic

Plague 101 | National Geographic

– [Narrator] Plague is notorious for causing mass sickness and devastation. But as much tragedy as the disease has caused, it also helped drive crucial scientific and social progress. Plague is an infectious disease caused by the bacterium Yersinia pestis. It mainly affects rodents, and spreads by way of insects. Because of these insect carriers, …

Flat Earth vs. Round Earth | Explorer

you think that with the beautiful photographs that we have of our round blue planet it would convince any doubters but there are still some who insist that the world is flat correspondent Mariana van Zeller discovers more about this fast growing movement in California I’m Mariana van Zeller and I’m in Southern California to …