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Man gets 55M views dropping 2 basketballs off a dam in Tasmania to “show what physics can do”
It's a steep drop no matter how you cut it. But one ball is taking a very different path than the other.
Jessica Adler
10.03.23

A basketball, a 415-foot-high dam, and a dash of physics whimsy set the stage for an experiment that’s anything but ordinary.

At the Gordon Dam in Tasmania, a group of friends, armed with curiosity and a camera, decided to explore the Magnus effect.

Not through equations or diagrams, but with a real, bouncing, and slightly rebellious basketball.

YouTube - Veritasium
Source:
YouTube - Veritasium

The Magnus effect, while it might sound like an elaborate magic trick, has been known to physicists since the 1850s.

It’s the phenomenon that causes a spinning object to curve away from its intended path, creating a delightful detour in mid-air.

But instead of sticking to the script of scientific explanation, our daring experimenters decided to let a basketball do the talking.

The first basketball took a straightforward plunge, obediently following the path set by gravity, landing predictably below. No unforgettable bounce back or impact. No frills.

In other words, it acted just like we expected it to.

YouTube - Veritasium
Source:
YouTube - Veritasium

The second basketball, however, stole the show.

With a cheeky bit of backspin, it veered off, carving a curvaceous path through the air, and making a splash in a distant lake, much to the delight and surprise of onlookers.

YouTube - Veritasium
Source:
YouTube - Veritasium

“Woah, look at that go!”

The words echoed as the basketball danced with the wind, showcasing the Magnus effect in a way that was both simple and utterly captivating.

The backspin altered the air pressure around the ball, creating a sideways force that propelled it on a scenic route down to the water below.

YouTube - Veritasium
Source:
YouTube - Veritasium

The video, aptly titled “Backspin Basketball Flies Off Dam,” didn’t just capture the unexpected journey of a basketball.

It bounced into the screens and hearts of over 55 million viewers.

A simple physics demonstration becamea viral sensation that left us all marveling at the playful side of science.

YouTube - Veritasium
Source:
YouTube - Veritasium

But the Magnus effect isn’t confined to playful experiments and sports arenas.

It’s also sailing into the technological and transportation realms.

Imagine sailboats propelled by spinning cylinders, known as “Flettner rotors,” harnessing the wind and gliding through the waters, all thanks to the same principle that sent our basketball on its curvy descent.

YouTube - Veritasium
Source:
YouTube - Veritasium

And the skies aren’t off-limits either.

While traditional airplane wings are the standard, there have been ventures into using spinning cylinders to generate lift.

Despite presenting challenges, such as increased drag, the Magnus effect continues to inspire and guide innovations, turning what was once a simple observation into practical, and sometimes surprising, applications.

YouTube - Veritasium
Source:
YouTube - Veritasium

The Magnus effect shows us that physics isn’t just about numbers and theories.

It’s alive in the world around us, turning a simple drop of a basketball into a spectacle, a lesson, and a shared moment of wonder and discovery.

YouTube - Veritasium
Source:
YouTube - Veritasium

So, as the basketball takes its unexpected path, curving and swooping its way into the lake, it brings with it a little bit of magic.

It’s a reminder that the universe is not only underpinned by laws and principles but is also capable of throwing us a curveball, inviting us to explore, learn, and find joy in the unexpected twists and turns of life.

See why this demonstration of a long-known physics phenomenon got over 55 million views below!

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