# Beavers: The Smartest Thing in Fur Pants

Beavers have done more to shape North American landscapes than any animal beside humans. Continue reading

# What If The World Became Vegan? – Earth Unplugged

In the UK alone there are over half a million people who have decided to live a vegan lifestyle. Continue reading

# Is Space a Thing?

Since the days of Ancient Greece, philosophers and scientists have been wondering: What is space? Is the absence of things… a thing? Continue reading

# Canada C3’s epic science expedition

A retired icebreaker is making its way around the country to study Canada’s coasts. CBC’s Brett Ruskin takes us on board the ship. Continue reading

# What Did Dinosaurs Really Sound Like?

You probably remember the T.rex’s iconic roar from Jurassic Park, but it turns out that dinosaurs actually didn’t sound that ferocious.

Hosted by: Hank Green

# 20 Million Animals Preserved In Alcohol – Earth Unplugged

The Spirit Collection in London’s Natural History Museum is home to over 20 million dead animal specimens, collected from around the world. They are preserved and kept for research and educational purposes. Lizzie Daly met up with Ollie Crimmen, Senior Curator of Fish to find out a little more. Continue reading

# Hydrodynamic Levitation!

On a stream of water you can levitate light balls of all sizes and even disks and cylinders. The mechanism is not the Bernoulli effect…
Want to make this at home:

My friend Blake from InnoVinci emailed me with a cool idea for a video and footage of levitating balls in water streams. Initially it was tough to explain the physics of what was going on. The standard Bernoulli effect relies on the object being completely immersed in the upward-flowing fluid. But in this case the water seems to form a single stream around the object and it’s deflected away and down from the stream. By Newton’s third law, the force on the water by the ball is equal and opposite to the force of the water back on the ball, pushing it up into the stream. There is a stable equilibrium position because if the ball moves into the stream, it “cuts off” the water going over the ball so it drifts out. If it drifts out too far, then lots of water passes over the ball, pushing it back into the stream.

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Tony Fadell, Donal Botkin, Jeff Straathof, Zach Mueller, Ron Neal, Nathan Hansen

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Filmed by Raquel Nuno
Slow motion by Hollywood Special Ops http://hollywoodspecialops.com