What Happens When A Basketball Is Dropped From A 415-Foot Dam

Concrete dam releasing water under a clear blue sky with a basketball digitally added above the dam wall.

Summary:

  • The basketball falls off a 415-foot dam in a mind-blowing display of the Magnus Effect phenomenon.

  • The Gordon Dam in Australia hosts the physics experiment that led to an internet sensation.

  • The Magnus Effect, demonstrated by a basketball falling off a dam, is a key concept in sports and engineering.

Take a photograph of a basketball tied at the end of a 415-foot dam with a person on it. You drop it. Simple, right? Wrong. It is important to mention that the basketball falls in inexplicable ways, but rather, it runs away as it lives. It is the science of one of the most mind-blowing videos on the internet.

The Dam That Started It All

Curved concrete dam wall with metal stairway descending rocky cliffside into water reservoir

The height of the Gordon Dam in Tasmania, Australia, measures 415 feet or approximately 40 stories in height. It is the location of the trick group, which held an unrealistic physics test that was reported online.

First Drop — Nothing Special

Spalding basketball floating above a lake with trees and people on a dock in the background

The basketball was not bent or twisted but dropped, as is. It came down right, the wind soft, knocking it down till it struck the water. The law of gravity and physics acted as it should. Nobody was impressed yet.

Then They Added Backspin

Person holding a basketball over a dam with a deep canyon and river in the background

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Everything was altered by the second spillage. The ball has the same height and the same diameter, but is thrown this time with a hard back-spin. The next sequence would have seemed to come out of CGI: the ball plummeted off the dam during the fall in a dramatic way, and jet propelled out, as though it were being tugged.

Meet the Magnus Effect

Researchers from Universitetet observing a basketball suspended by a cable over a foggy dam with scientific equipment.

The Magnus Effect, which is known as the Magnus Effect, is the property that describes the curving of objects that spin in the air, and is applied to objects such as footballs, golf balls, and curveballs. It is named after Heinrich Gustav Magnus, who described it in 1852.

Here’s How It Actually Works

Person wearing black gloves holding a basketball over a large concrete dam with a river and rocky canyon in the background

 

In the falling of a rotating ball, air moves with it and is pushed out on one side, and on the other side, air is not connected to the other one. This brings about disequilibrium in air pressure, which drives the ball towards the area of high pressure.

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The Ball Fights with Gravity

Basketball flying over Hoover Dam with three people observing from the top edge.

The basket with a backspin turned off briefly and shot off. It did not focus on parents but it was not that easy that made the audience make a sudden double-take.

Science Channels Went Wild

Hand holding a smartphone displaying the YouTube app loading screen with the red play button logo.

This footage was utilized by the YouTube channel Veritasium to describe the Magnus Effect to millions of people, which made the video one of the most viewed physics demonstrations on the Internet.

It is Embodied in Sports Everywhere

Two soccer players in blue and red jerseys competing for the ball with a referee in yellow nearby on the field.

The Magnus effect is also seen in such sports as soccer free kicks, baseball pitches, and tennis serving. This phenomenon is exploited by the top athletes in these sports, and in many circumstances, the fact of this exploitation remains hidden.

Engineers Use It Too

E-Ship 1 cargo ship with four large vertical rotors sailing near a coastline with an experimental AC-1 aircraft flying nearby.

Not only is the Magnus Effect a sports phenomenon, but it is also an engineering tool. Rotor ships rely on rotating cylinders rather than sails to tap the wind energy, and rotating surfaces are used in experimental aircraft. This demonstrates one physics law that leads to discoveries.

The World Record Bonus

Three smiling men holding basketballs wearing white "Now Ridiculous" t-shirts against a plain background

The highest basketball shot by a man was a Guinness World Record that was set by the How Ridiculous team. They had done the trick shot, which impacted, and they also had a world record. Not a bad Tuesday.

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