Topic: fluid dynamics

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How Ingenious Animals Have Engineered Air Conditioning

Termites, prairie dogs, and people are all great builders, each in their own way. We all share one crucial problem: Put a bunch of us in a closed space, breathing oxygen in, breathing CO2 out... it doesn't end well. ...

Incredible indoor skydiving flyers at the 2017 Wind Games

A little like ice skating, gymnastics, or modern dance while flying, this indoor skydiving freestyle routine by Poland’s Maja Kuczyńska, performed at the 2017 Wind Games in Catalonia, Spain, is made possible by four h...

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 ...

The 3-million-year old Ningwu ice cave never thaws

White stalactites hang down from every surface, and the walls and floors are glazed with thick ice. The Ningwu ice cave, also referred to as Wannian Ice Cave in Ningwu County, China, is a unique phenomenon: The subter...

The physics of ‘skydiving’ wind tunnel acrobats

In a vertical wind tunnel that's blowing air upward at 270 km/h (168 mph), four 'skydiving' acrobats perform a twisting, turning flying routine without ever colliding into each other. How do they perform epic looking ...

How Far Do Sneezes and Vomit Travel? – Gross Science

Let's enter the world of sneeze experiments and vomiting machines with Anna Rothschild as she explains just how far the tiny liquid particles from sneezes and vomit can travel... and it's farther than you think. 'Vomi...

Chemical Bouillon, a series of visually abstract chemical reactions

Hydrocarbon vs Ink - Implosion, above, from the Chemical Bouillon video series, "an artistic project studying the graphic aspect of chemical reactions" created by Antoine Delach, Valere Amirault, and Teurk in Paris, F...

What makes owls so quiet & so deadly for prey? – Deep Look

Get a close up look at the sound-muffling feathers of an owl. Add powerful low-light vision and a nocturnal nature, providing her with the cover of darkness, and the owl becomes a stealthy ambush hunter. From KQED's D...

Hot & Cold Water Science Experiment – HooplaKidzLab

With two matching jars, red and blue food coloring, some hot and cold water, an index card, and a dish or baking pan, you can observe how the different densities of hot and cold water behave. This experiment by Hoopla...

The Inverted Glass Harp

We love glass harps – instruments made from wine glasses that are filled with different amounts of water to create a series of desired pitches. In The Inverted Glass Harp, Dan Quinn shows us that empty glasses can als...

Why do spinning rings & spinning disks have different paths?

In this silent video from Science Magazine, we can see how a spinning disk and a ring create two different paths while spinning. Try it at home. Do you see the same result? David Schultz at ScienceMag.org explains: ...

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...

Ferrolic – A ferrofluid clock prototype by Zelf Koelman

Watch ferromagnetic fluid travel across a blank surface like living creatures: undulating forward, dancing rhythmically, blobbing together in organic shapes to digitally display the current time. Ferrolic, a ferroflui...

The art of suminagashi or Japanese paper marbling

Watch artisan Tadao Fukuda as he creates beautiful handmade marbled papers, an art called suminagashi (墨流し) in Japanese. From echizenwashi.jp: Mr.Fukuda is in his eighties and very energetic to have had his marb...

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...

What makes that fresh rain smell? MIT films rain drops to find out

Why do we smell that fresh earthy scent before and/or after it rains? With high-speed cameras, MIT researchers have filmed rain drops, and believe that the footage explains petrichor, the "pleasant smell that frequent...

How An Airplane Is Made – MinutePhysics

Travel to France with Minute Physics' Henry Reich for a behind-the-scenes tour of the factories, research, and design facilities of Airbus. This is how an A350 is built! There's also a cameo by Beluga, Airbus' special...

The Hidden Complexities of the Simple Match – Science Take

Schlieren flow visualizations illuminate a world of activity that we almost never pay attention to, even when we're causing it to happen. Simple things like breathing, sneezing, clapping hands, or just producing heat ...

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