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Measuring Viscosity of a Liquid - Experiment

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Measuring Viscosity of a Liquid - Experiment

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Students calculate the viscosity of various household fluids by measuring the amount of time it takes marble or steel balls to fall given distances through the liquids. They experience what viscosity means, and also practice using algebra and unit conversions.

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Pitch Drop Experiment Analysis Across Schools 2

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We ran a competition to name the experiment and to design posters that were displayed around the school. We decided to use this image for Olly's Profile.

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Check out Olly The Oil Drop in Santa Sabina, Dominican College, Sutton. Part of Trinity College Dublin, School of Physics 300 years Celebration. https://www.santasabina.ie/News/TCD-Oil-Drop-Experiment/272774/Index.html An all Ireland Experiment in schools https://www.tcd.ie/physics/300/pitch-tar/

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Trinity College Dublin, like many others has partaken in the Tar Drop Experiment. For many years it has gathered data but what makes it unique is it’s achievement of being the first institution to actually record the drop on video!

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After 69 years, one of the longest-running laboratory investigations in the world has finally captured the fall of a drop of tar pitch on camera for the first time.

Begun in October 1944, the Pitch Drop experiment, at Trinity College Dublin's School of Physics, is one of the world's oldest continuously running experiments.

This curiosity of an experiment demonstrates that pitch is a material that flows - albeit it with an incredibly high viscosity. Whilst pitch has been dropping from the funnel since 1944, nobody had ever witnessed a drop fall - they happen it happens roughly only once in a decade! In May 2013, with the latest drop about to fall, Prof. Shane Bergin broadcast the experiment via the web. On July 11th 2013, the drop dripped. You can see a time lapse video of this here. Tracking the evolution of the drop, Profs. Weaire & and Hutzler, and Mr. David Whyte calculated the viscosity of the pitch to be 2x107 Pa s - approximately 2 million times the viscosity of honey.

The time-lapse video has attracted considerable global media attention. Discover Magazine named the Trinity Pitch Drop in their top 100 science stories of 2013 and a feature article in Nature News was the 3rd most-read piece on their website in 2013.

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After 69 years, one of the longest-running laboratory investigations in the world has finally captured the fall of a drop of tar pitch on camera for the first time. Begun in October 1944, the Pitch Drop experiment, at Trinity College Dublin's School of Physics, is one of the world's oldest continuously running experiments.

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Pitch drop at Trinity College Dublin successfully recorded on camera after 69 years

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Finding Coefficient of Viscosity by Stoke`s Method 

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Finding Coefficient of Viscosity by Stoke`s Method 

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Determine the Coefficient of Viscosity Using Stoke’s Method

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In this article, we will discuss what is meant by viscosity, how to determine the coefficient of viscosity using Stoke’s method, and more.

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After 69 years, one of the longest-running laboratory investigations in the world has finally captured the fall of a drop of tar pitch on camera for the first time.

Begun in October 1944, the Pitch Drop experiment, at Trinity College Dublin's School of Physics, is one of the world's oldest continuously running experiments.

This curiosity of an experiment demonstrates that pitch is a material that flows - albeit it with an incredibly high viscosity. Whilst pitch has been dropping from the funnel since 1944, nobody had ever witnessed a drop fall - they happen it happens roughly only once in a decade! In May 2013, with the latest drop about to fall, Prof. Shane Bergin broadcast the experiment via the web. On July 11th 2013, the drop dripped. You can see a time lapse video of this here. Tracking the evolution of the drop, Profs. Weaire & and Hutzler, and Mr. David Whyte calculated the viscosity of the pitch to be 2x107 Pa s - approximately 2 million times the viscosity of honey.

The time-lapse video has attracted considerable global media attention. Discover Magazine named the Trinity Pitch Drop in their top 100 science stories of 2013 and a feature article in Nature News was the 3rd most-read piece on their website in 2013.

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After 69 years, one of the longest-running laboratory investigations in the world has finally captured the fall of a drop of tar pitch on camera for the first time. Begun in October 1944, the Pitch Drop experiment, at Trinity College Dublin's School of Physics, is one of the world's oldest continuously running experiments.

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Pitch drop at Trinity College Dublin successfully recorded on camera after 69 years

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Pitch drop at Trinity College Dublin successfully recorded on camera after 69 years

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We’re home to the famous Pitch Drop experiment, which holds the Guinness World Record for the longest-running laboratory experiment.

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The Tenth Watch for the ninth Pitch Drop.

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The Pitch Drop is the world's longest running lab experiment. Many believe it's also the most boring. But in its 86 years, no one has seen a Pitch Drop fall. Now the 9th drop is set to go and anyone watching has a chance at history.

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We’re home to the famous Pitch Drop experiment, which holds the Guinness World Record for the longest-running laboratory experiment.

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Pitch-Tar Drop, School of Physics, Trinity College Dublin

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The Tenth Watch for the tenth Pitch Drop

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Demonstration: The higher the viscosity of a liquid the more it resists motion of a body through it. The result can be very low terminal velocity.

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Class practical: An object falling through water reaches a constant terminal velocity after falling relatively small distances. This terminal velocity can be seen and measured.

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We were delighted to be part of Trinity College Physics 300 Oil Drop Experiment. From the beginning we wanted to use it as a vehicle to heighten awareness of physics throughout the whole school. This included a competition to  name the experiment giving it the personality of “Olly the Oil Drop” complete with an Instagram account. Students researched and performed  other viscosity experiments celebrating George Stoke. Unfortunately the drop doesn't seem to be falling. This did not put us off. We ran surveys and competitions for the whole school. We learned about time-lapse photography and live-streaming to youtube as well as monitoring other schools' experiments. It has been a tremendous learning experience that is documented in this students padlet

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This is our poster that links to this Padlet . We couldn't everything on it.

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Sanra Sabina Olly the Oil Drop Experiment (1)

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Olly has his own 24 hour YouTube Live Stream on

@OllyTheOilDrop https://www.youtube.com/@OllyTheOilDrop

We were able to observe over holidays and weekends

We hope that we can capture the moment of the oil dropping

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Olly the Oil Drop Experiment_ A School Physics Project (1)

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It goes without saying, that our team did not just record the data gathered, we also came up with multiple hypotheses as to why our experiment unfolded the way it did

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Our experiment to find the viscosity of different liquids

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Our experiment to find the viscosity of different liquids

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   The Pitch Tar Experiment and its History

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   The Pitch Tar Experiment and its History

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Welcome to Santa Sabrina’s Oil Drop Experiment!

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Welcome to Santa Sabrina’s Oil Drop Experiment!

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This is our poster that links to this Padlet . We couldn't everything on it.

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Olly has his own 24 hour YouTube Live Stream on

@OllyTheOilDrop https://www.youtube.com/@OllyTheOilDrop

We were able to observe over holidays and weekends

We hope that we can capture the moment of the oil dropping