Youtube activity of "Jef Koele-Wijn" (@jefkoele-wijn8872) on "National Geographic" channel.
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Comments by video
"A Spoon You Can Eat Is a Tasty Alternative to Plastic Waste | Short Film Showcase"
"Amazing Footage: Goats Climbing on a Near-Vertical Dam | National Geographic"
"Big Horn Bash | Untamed Americas"
"Caffeine 101 | National Geographic"
"Concrete Tent | I Didn't Know That"
"Earwig Wings are Origami-Like | National Geographic"
"Electromagnetism 101 | National Geographic"
"Exploring Iceland in Winter | National Geographic"
"Extremophiles 101 | National Geographic"
"Fighting the Invasive Stinkbug | National Geographic"
"Gross or Brilliant? Using Bugs to Feed the Animals We Eat | National Geographic"
"Hear the Otherworldly Sounds of Skating on Thin Ice | National Geographic"
"How Cockroaches Use Karate Kicks to Avoid Becoming Zombies | National Geographic"
"How Surfing Lead One NatGeo Explorer to The Depths of The Ocean | National Geographic"
"Hydrothermal Ocean Vents Found in Surprisingly Shallow Water | National Geographic"
"Keeping the Inuit Way of Life Alive in a Changing World | Short Film Showcase"
"Magnets Control These 3-D Printed Robots | National Geographic"
"Meet the Super Cow | National Geographic"
"Millennial Monks Adapt to a Modernizing World | National Geographic"
"Most Annoying Sound on Earth Finally Explained by Science | National Geographic"
"Mutant Plant Glows When Attacked | National Geographic"
"New Discovery: Blood-Red Worms That Thrive in a Toxic Cave (EXCLUSIVE VIDEO) | National Geographic"
"New Invention Keeps Deep-Sea Creatures Alive at Surface | National Geographic"
"Robot vs. Tiger | Nat Geo Live"
"Samurai Sword - Linked | Explorer"
"Scientists Use Leaf Blowers to Study Natural Selection | National Geographic"
"See How Paper Is Still Being Made by Hand Today | Short Film Showcase"
"See a New Robot That Captures Sea Creatures—Gently | National Geographic"
"See the 1,000-Year-Old Windmills Still in Use Today | National Geographic"
"Soar Over the Chocolate Hills in the Philippines | National Geographic"
"Supervolcanoes 101 | National Geographic"
"The Art of Single Stroke Painting in Japan | National Geographic"
"The World’s Largest Wooden Temple is Surrounded by Wild Deer | National Geographic"
"There's an Alien World Beneath Our Feet | One Strange Rock"
"These 300-Year-Old Dutch Windmills Are Still Spinning Today | National Geographic"
"These Perfect, Shiny Spheres Started Out as Dirt | Short Film Showcase"
"This "Walking" Fish Has Scientists Stumped | National Geographic"
"This Is the Most 'Indestructible' Animal on Earth | National Geographic"
"This Wiggly Robotic Fish Could Advance Marine Research | National Geographic"
"Tiny Sea Creatures Could Create Big Ocean Currents | National Geographic"
"Vietnam's Ha Long Bay Is a Spectacular Garden of Islands | National Geographic"
"Watch: Owl 'Swims' for Its Life in Rare Video | National Geographic"
"What a World Champion Whistler Sounds Like | National Geographic"
"When Magma Meets Water | Breakthrough"