Topic: vortex

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Cannon cloud collisions for Art & Inactivism

Two clouds rush toward each other and collide before dissipating in this installation by Mitchell F. Chan. Titled Something Something National Conversation (In 2 Characters Or Less), the crashing forms of water vapor ...

Rock Swing Cup & more DIY playground physics

Next time you're on the swings, think about what it might be like if you were swinging on the moon, free from air resistance. AP Physics teacher Jared Keester had that in mind during this experiment: Swing jumping wit...

A vortex of bubbles twirls pufferfish as cold & warm waters collide

A vortex of bubbles forms like a lasso in the waters off the coast of Socorro Island, where cold California currents collide with warm equatorial waters. It's a seasonal phenomenon in Mexico's "little Galápagos", appr...

How to make smoke rings with a simple DIY vortex cannon

If you're looking to make a simple vortex canon for shooting smoke rings across the room, you'll like this DIY video by Dave Hax. All you'll need is an empty plastic bottle, a balloon, and an incense stick, preferably...

Where Do Birds Go In Winter? – It’s Okay to Be Smart

Where do birds go for the winter, and when did we first figure out where they were disappearing to every year? Do they go to the moon, or are they off to fight battles with goat-riding armies? (Spoiler alert: Those th...

How to make a Crazy Pool Vortex – Physics Girl

Have a plate, a pool, and some food coloring? In this experiment, Physics Girl Dianna Cowern makes strange black circles form by briefly dragging a plate through the pool. On a sunny day in still water, those black ci...

Stormscapes – A time lapse of storm clouds & mesocyclones

Shot in Wyoming and South Dakota by photographer Nicolaus Wegner in the summer of 2013, this video for National Geographic is an incredible look into the thunderstorms and mesocyclones -- powerful vortexes of air wit...

The Fire Lab and the Mysterious Science of Fire

How does fire spread? How do different forest materials fuel it? How can firefighters better understand its behavior in order to control it? Why is the physics of fire so counter-intuitive and mysterious to us? At Th...

The physics of why birds fly in V-formation – Come fly with me

Why do birds often fly in a “V” shape formation? Researchers at the UK’s Royal Veterinary College have gathered data from individual ibises in a migratory flock to study why...

Giant wingtip vortices in the fog as an airplane lands

An invisible but universal phenomena, huge wingtip vortices can be seen in the twisting fog as this airplane lands in Zurich, Switzerland. Wingtip vortices are strong spirals of air that are created when high pressur...

Make an underwater vortex ring generator

Watch YouTube user Xraise Cornell create a homemade horizontal vortex ring generator. When a small burst of air is released into a toroidal or poloidal vortex — essentially a spinning donut of water — it s...

A diver makes underwater vortex rings that can knock over rocks

And here I thought this was just an animated gif, but no, via Daily Picks & Flicks, there’s a video of a diver making a bubble ring or vortex ring, above. A vortex ring is the phenomenon where a quantity...

Microscope video of a Limnias melicerta (a rotifer)

Wired Science has an incredible gallery of the Best Microscope Videos of 2012, via Nikon’s video competition. We have a few favorites: This is a Bay Scallop Limnias melicerta. Those blue things are tiny eyes. T...

How to make a homemade vortex cannon

Hello, homemade vortex cannon! Make a tightly closed box with a narrow round hole at the end, hit the sides of the box to compress the air inside, sending the air out with some force. Instant vortex ring! Watch mor...

Dolphins blowing bubble rings

Cetaceans, , blow bubble rings, fast-spinning rings of air that they appear to play with. We happened upon this video after watching a suggestion about toroidal vortices by @dulemba.  ...

A cell caught in the vortex created by a feeding rotifer

This is a rotifer (the Latin word meaning “wheel-bearer.”). They are “microscopic aquatic animals… found in many freshwater environments and in moist soil, where they inhabit the thin films of...

Stroke Of The Water Strider – Science Friday

Food coloring tests and a robot water strider? We love @SciFri! Water striders don’t really stride, they row on the water. But their legs are spindly and don’t seem good for paddling. To find out exac...