Friday, Mar 23 2018 | Updated at 08:58 AM EDT

Stay Connected With Us F T R

Apr 15, 2017 08:50 AM EDT

Shoes getting untied are a worldwide phenomenon, and is something that is usually taken for granted. But UC Berkeley mechanical engineers have finally taken interest and conducted a study to find out the real reason why shoelaces or shoestrings unravel. The answer is very interesting and unexpected.

The engineers said there is a double whammy of forces from stomping and whipping that are like invisible hands, Eureka Alert reported. The invisible hands loosen the knots of the laces until they become totally unraveled. This may be a simple example of how science answers obvious question, but this is also important for understanding how knots fail in certain situations.

The engineers used a slow-motion camera to capture how the shoelace failure happens. The images show that the unraveling of the knots happens in a matter of seconds. They found out that the knots fail due to a complex interaction of various forces.

The study was done when EC Berkeley's Dr. Oliver O'Reilly got fed up with how the knots of his shoelaces always get unraveled, ABC 7 reported. This frustration leads to a curiosity that brought them to the intense investigation. He worked with mechanical engineering graduate students Christopher Daily-Diamond and Christine Gregg to accomplish this research.

The topic may be simple, but the elements involved make it more significant. Some of the factors include the fabric of the shoes, the speed of walking, the torsional stiffness, the bending, the material used for the shoelace, and the walking strides. It took the team two years to understand these phenomena, which they call "dynamic untying."

One of the engineers has to walk and run so many miles in the streets and on the treadmill to capture on camera the unraveling of the shoelaces. They found that the untying of the knot is not due to human error, but physics, since they saw that even the strongest knots get unraveled.

Follows UC Berkeley, Berkeley Science, shoestring theory, shoelaces, Berkeley engineers
© 2017 University Herald, All rights reserved. Do not reproduce without permission.

Must Read

Here is NASA’s Take On Anonymous Hackers Alien Claims [VIDEO]

Jun 28, 2017 AM EDTNASA official says no alien has been found until today.

International Cyber Attack Strikes Again: Ransomware Hits Companies Worldwide [VIDEO]

Jun 28, 2017 AM EDTOver 2,000 computers in about a dozen countries were affected.

The Magic of Celebrity Involvement: How Projects and Concepts Get Public Nod When Icons Get Involved [VIDEO]

Jun 28, 2017 AM EDTDo celebrities really affect marketing?

Student Loans In Focus: How Much Do Students Really Borrow To Attend The Top 10 Schools [VIDEO]

Jun 26, 2017 AM EDTFor most students, going into the Top 10 schools is a dream come true. But is the expense in studying in these schools worth it?