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– [Instructor] Electromagnetism or the electromagnetic force is one of the four fundamental forces of nature. It generates light and energy and holds atoms, matter, and the world as we...
(dramatic music) – [Narrator] They are nestled in the final frontier, countless worlds, scattered throughout countless galaxies, challenged the notion that we are alone in the universe. Exoplanets are worlds...
– [Instructor] At the edge of the solar system Pluto pushes the boundaries of our understanding of the universe. Nestled within the far flung Kuiper belt the dwarf planet is...
you may already know that lions are big cats weighing up to 500 pounds and growing up to 10 feet long lions are the second largest members of the cat...
[ominous music] NARRATOR: In Africa, there are four species of Mamba. Three of them are green, beautiful and deadly. But the fourth is both aggressive and fast, the Black Mamba....
(dramatic music) (roaring) – [Narrator] Probably no other creatures on the planet have struck as much fear and awe in our hearts as the dinosaurs. (roaring) The earliest dinosaurs appeared...
Thailand Highway 3259 is a sugarcane transport road. Thousands of farmers use it to get their crops to the refinery. But this highway has a toll collector. Locals call him...
the Philippine eagle is one of the world’s largest and rarest birds of prey a critically endangered species fewer than 900 adults remain on just for Philippine Islands a top...
my first spacewalk holding on to the outside of the spaceship with nothing except the sound of my own breathing in my one hand is my entire link with my...
NARRATOR: Harold Uris was a chemist. Like Gerard Kuiper, he also had to fight his way into science. Uris’ family was poor, like Kuiper’s, so he took a job teaching...
