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When Honey Flows Faster Than Water
Brown Dwarfs and Their Stripes
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Celebrating the physics of all that flows

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Celebrating the physics of all that flows

FYFD

  • Browse
    • The Archive
    • Themed Series
    • FYFD Videos
    • Research
    • Phenomena
    • Art
    • Reader Questions
  • Follow
    • Email Newsletter
    • Twitter
    • Instagram
    • YouTube
  • Support
  • Events
  • Resources
  • Merch
  • Contact Us
  • Email Newsletter
A drop of honey inside a superhydrophobic capillary tube. Research

When Honey Flows Faster Than Water

Nicole Sharp - February 25, 2021February 10, 2021

With its high viscosity, no one would ever pick honey to beat water in a race. But a new study shows there’s at least one circumstance where honey wins: inside Keep reading

Artist's conception of a brown dwarf. Research

Brown Dwarfs and Their Stripes

Nicole Sharp - February 24, 2021February 9, 2021

Brown dwarfs are neither stars nor gas giants but something in between. Our two nearest brown dwarf neighbors are roughly equivalent to Jupiter in size but about 30 times more Keep reading

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Phenomena

Ultrasonic Vibrations

Nicole Sharp - February 23, 2021February 8, 2021

Ultrafast vibrations can break up droplets, mix fluids, and even tear voids in a liquid. Here, the Slow Mo Guys demonstrate each of these using an ultrasonic homogenizer, a piece Keep reading

A wombat and her joey. Research

How Wombats Make Stackable Feces

Nicole Sharp - February 22, 2021February 4, 2021

Wombats are unique among the animal kingdom for their ability to produce cubic feces approximately the size and shape of dice. Researchers found that wombats accomplish this geometric feat thanks Keep reading

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Art

“Satellike”

Nicole Sharp - February 19, 2021February 3, 2021

When watching Roman De Giuli’s “Satellike,” you may think you’re looking at satellite imagery of Earth. In reality, each sequence is a combination of watery ink and dried paint on Keep reading

Using coalescence, researchers guide a microfluidic droplet through a maze. Research

Microfluidic Pac-Man

Nicole Sharp - February 18, 2021February 2, 2021

Researchers are using coalescence to guide microdroplets through a miniature maze, a la Pac-Man. To steer the main droplet, they place a smaller droplet nearby in the direction they want Keep reading

With a fixed background and some software, a smartphone video can reveal snowfall flow patterns. Phenomena

Snowflake Velocimetry

Nicole Sharp - February 17, 2021February 1, 2021

In our era of remote learning, students don’t always have a chance to do hands-on lab experiments in the usual fashion. But that doesn’t mean they can’t explore important flow Keep reading

An egg yolk. Research

This Is Your Brain

Nicole Sharp - February 16, 2021January 29, 2021

The human brain, like an egg, consists of soft matter bathed in a fluid and encased in a hard shell. To better understand how our brains respond to sudden accelerations, Keep reading

Von Karman vortices off the islands of Cabo Verde. Phenomena

Strings of Swirls

Nicole Sharp - February 15, 2021January 28, 2021

Von Karman vortex streets are the rows of alternating vortices shed off isolated objects interrupting a flow. Here, the volcanic peaks of Cabo Verde disrupt an atmospheric flow accustomed to Keep reading

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Research

Viscoplastic Drop Impact

Nicole Sharp - February 12, 2021January 27, 2021

There are many materials that don’t behave exactly as a fluid or a solid, instead displaying characteristics of both. In this video, we see drops of hair gel falling into Keep reading

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About FYFD

FYFD celebrates the physics of all that flows. It was established in 2010 by Nicole Sharp, PhD. You can also follow FYFD on Twitter, YouTube and Instagram.

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