🔬#MESExperiments 54: SpillNot Centripetal Tray

In #MESExperiments 54, I showcase the amazing SpillNot centripetal waiter's tray, whose circular motion can balance a cup of water without spilling it over, even while performing a full 360 degrees upside down! The SpillNot works on the principle that circular motion involves a centripetal force that brings the tray back towards the centre of the circular motion — this results in the cup of water experiencing a normal force far directly onto the tray, which far exceeds the downwards force due to gravity. The most astonishing part is that even a straw placed in the cup barely even experiences any slight nudge as it moves at rapid speeds. I also place my phone in the tray with both front selfie camera and rear camera views to further illustrate this amazing phenomenon!

#physics #experiment #centripetalforce #inertia

Stay tuned for #MESExperiments 55...

Links unedited videos and more info

• SpillNot with a cup of water and a straw:
• SpillNot with a phone:
• SpillNot with Selfie Phone Camera:
• SpillNot with Rear Phone Camera:
• SpillNot website and science behind it: https://www.thespillnot.com/the-science
• Bruce Yeany centripetal / centrifugal tray tutorials: https://www.youtube.com/@YeanyScience/search?query=centripetal%20tray

Timestamps

• SpillNot with a cup of water and a straw doesn't spill the water or nudge the straw – 0:00
• SpillNot with phone filming with selfie camera – 1:03
• SpillNot with phone filming with rear camera – 1:29

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