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Euler's Disk
Item #P2-9800
$42.95
Bundle Discount
| Unit Price | $42.95 |
| 6+ | $39.90 |
A striking demonstration of angular momentum and energy conservation
Euler’s Disk is a captivating tabletop demonstration that sparks curiosity, debate, and deep thinking about energy conservation and angular momentum. Simple to use yet rich in complexity, this heavy metal disk spinning on a smooth concave mirror creates an unforgettable visual: the disk rotates and rolls for an astonishingly long time—then suddenly speeds up as it nears the surface. It’s a deceptively simple setup that invites big questions and lively classroom discussion.
Why Teachers Love Euler’s Disk
- Instant engagement: The dramatic motion naturally draws students in and prompts questions.
- Big ideas, simple setup: Demonstrates conservation of energy and angular momentum with a single twist.
- Discussion-driven learning: Encourages prediction, explanation, and debate across multiple levels of understanding.
- Durable and classroom-ready: Heavy metal disk and a 9-inch diameter mirror built for repeated use.
Product Details
For Physics Enthusiasts
Euler’s Disk offers a rare opportunity to connect classroom demonstrations to advanced physics:
- Energy dissipation: Explore how rolling, slipping, air resistance, and friction contribute to the disk’s motion.
- Angular momentum: Analyze why rotation persists and how angular velocity changes over time.
- Nonlinear dynamics: Discuss why the disk’s rotation accelerates as it approaches the surface.
- Historical context: Link observations to the work of Leonhard Euler, for whom the disk is named, and to modern research in rotational dynamics.
Whether explained with intuitive energy arguments or advanced equations, Euler’s Disk bridges the gap between simple observation and complex physics—making it a favorite for both introductory classes and passionate physics enthusiasts.
Products being sold are not toys. They are for Educational / Laboratory use only. They are not for use by children 12 and under.
Product Specifications
Specs:
Disk dimensions: 3" dia. ½" thick
Mirror Diameter: 9"
What's Included:
Steel disk
Concave Mirror Platform
Reflective Magnets
Warning: California Residents
WARNING: Cancer & Reproductive Harm — www.P65Warnings.ca.gov
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