If the disc spins faster the longer it goes how do you stop it?

It spins SLOWER the longer it goes (Precession). It sounds like it is spinning faster due to more of the disk laying down flat before it comes to rest.

Does anyone have a video of this in action?

Here is a YouTube video of a Euler's Disk https://www.youtube.com/watch?v=rFtYzVJcWyA

How do you patent a steel disk?

A design patent on the visual design elements is the most likely answer. A utility patent on details of the disk that optimize its action (such as a specific combination of edge finish, weight distributions, etc. is remotely possible, but IMHO, very unlikely.. The third type of patent is.a plant patent, which is what Monsanto (not Moderna) gets,. I’m pretty sure it refers to a design patent.

what's disc diameter?

Hello, Thank you for your interest in our products! The mirrored base is 9" diameter, chrome plated steel disk is 3" diameter x .5" thick. Thank you, Customer Service, Office Playground

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$Euler’s Disk Desk Toys Office Adults - Create Hypnotic Light Refraction Sound Display - Science Decor Home And Workspace - Kinetic Motion Physics Models Kids 8+$

Euler’s Disk Desk Toys Office Adults - Create Hypnotic Light Refraction Sound Display - Science Decor Home And Workspace - Kinetic Motion Physics Models Kids 8+

Product ID: 1929010

🌀Precision steel disc spins smoothly

🎵Soft sonic hum enhances focus & relaxation

🔮Interchangeable holographic foils for mesmerizing light refraction

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MOP$706

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Description

🌀 Spin science into style—where focus meets fascination!

COMPACT ELEGANCE - Sleek chrome-plated design fits seamlessly into any professional workspace or home office.
GIFT OF DISCOVERY - Ideal for adults and kids 8+, blending education with mesmerizing decor that sparks conversation.
CUSTOMIZABLE VISUALS - Switch between 9 magnetized holographic foils to create unique, ever-changing displays.
HYPNOTIC KINETIC ART - Transform your desk into a dynamic light and sound spectacle that captivates and calms.
STEM POWERED CURIOSITY - Engage with physics concepts hands-on—perfect for lifelong learners and science enthusiasts.

Euler’s Disk Desk Toy is a precision-crafted steel spinning disc with a mirrored base and 9 magnetized holographic foils, designed to demonstrate physics principles like motion, friction, and light refraction. This compact, manual kinetic model produces a soothing sonic hum and hypnotic visual effects, making it an ideal STEM educational tool and stylish desk accessory for adults and kids 8+.

Specifications

ASIN	B000239E6Q
Age Range Description	Youth
Best Sellers Rank	#32,059 in Toys & Games ( See Top 100 in Toys & Games ) #264 in Educational Science Kits
Brand Name	Toysmith
Color	Multi-colored
Customer Reviews	4.7 4.7 out of 5 stars (2,566)
Educational Objective	STEM
Global Trade Identification Number	00051168017096
Included Components	mirror base,9 pieces of magnetized holographic foil, instructions
Indoor Outdoor Usage	Indoor
Is Assembly Required	Yes
Item Dimensions	10 x 9.5 x 1.5 inches
Item Type Name	Toysmith Euler's Disk Science Kit
Item Weight	2 Pounds
Manufacturer	Toysmith
Manufacturer Maximum Age (MONTHS)	960.0
Manufacturer Minimum Age (MONTHS)	96.0
Manufacturer Part Number	791709
Manufacturer Warranty Description	30 Day Warranty Against Manufacturer Defects
Material Type	Steel
Model Number	791709
Number of Players	1
Operation Mode	Manual
Power Source	manual
Set Name	Euler's Disk Science Kit
Size	Compact
Supported Battery Types	No batteries required
Theme	physics
UPC	793631620531 730309080280 736126283583 885167238509 051168017096

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MOP$706

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In stock

Sold byAmazon MacauDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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