▷ 15 sec video
Mathematics & geometry
Circle Area Dissection Exhibit
Rearrange circular sectors to compare a circle with an approximately rectangular or parallelogram-shaped arrangement.
Catalogue rendering · Design-image sequence
Mathematics & geometry
Coin Rotation Paradox Exhibit
Turn a handwheel and compare a coin model's spin with its travel around another circular model.
REFERENCE VIEWS · IMAGE SEQUENCE
Inspect the reference.
A fifteen-second sequence of five catalogue design images. Review the overall arrangement and component details; the sequence does not demonstrate physical operation or simulated 3D movement.
This film sequences existing reference images. It is not continuous operating footage or a moving 3D simulation; final function and configuration follow the agreed project.
THE ACTIVITY & MECHANISM
Count the turns from two different references.
Turn the handwheel to move the small disc around the outside of the larger disc and follow a mark on the small disc. The catalogue reference uses a large-to-small diameter ratio of 3:1. For external rolling without slipping, the small disc makes four complete rotations relative to a fixed direction on the tabletop during one orbit. Its orientation relative to the rotating line joining the two centres changes by three turns. The extra tabletop turn comes from going around the centre; the apparent contradiction disappears when the counting reference is stated explicitly.
- 01
Predict the turn count
Use the source reference’s 3:1 diameter ratio to predict how many times the smaller disc will turn.
- 02
Follow a fixed-direction mark
Turn the handwheel through one complete orbit and count the small disc's rotations relative to a fixed direction on the tabletop.
- 03
Change the counting reference
Compare that count with orientation measured against the rotating line joining the centres: four turns and three turns describe different references.
REFERENCE & PROJECT SCOPE
Reference specifications.
Catalogue design reference. Confirm the final operating configuration, guarding and teaching interpretation for the version to be supplied.
- L × W × H
- 700 × 700 × 900 mm
- Exhibit theme
- Mathematics & geometry
- Visitor activity
- Predict the turn count · Follow a fixed-direction mark · Change the counting reference
- Reference operation
- Use the source reference’s 3:1 diameter ratio to predict how many times the smaller disc will turn. Turn the handwheel through one complete orbit and count the small disc's rotations relative to a fixed direction on the tabletop. Compare that count with orientation measured against the rotating line joining the centres: four turns and three turns describe different references.
- Power & supply
- The source catalogue specifies no electrical supply for this configuration. Confirm whether the selected version adds powered interpretation or lighting.
- Configuration options
- Appearance, interpretation language, controls and installation arrangement by project agreement
- Daily operating schedule
- 8 hours per day
- Scheduled maintenance
- Every 30 days
- Factory dispatch lead time
- 30–90 calendar days after design approval and receipt of the deposit. Transit time is additional.
- Minimum custom order
- One exhibit
Overall configuration reference dimensions, L × W × H including the cabinet or base. Confirm the selected version before production.
BEFORE AN ENQUIRY
Questions & support.
24 months of complimentary spare-parts support, remote technical guidance and long-term after-sales support. Exhibit Engineers pays the shipping cost of complimentary spare parts during the 24-month support period.
Explore the supportDelivery, installation & after-sales terms
- Payment
- A 50% deposit is payable after the contract is signed. The remaining balance is paid after acceptance and before dispatch, so full payment is received before dispatch. Payment methods are agreed in the contract.
- Packaging & transport
- Metal shipping cases or multilayer wood-panel shipping cases. Transport arrangements and costs are agreed to suit the project.
- Materials & painted finish
- Common material options include Q235 steel, stainless steel, aluminium alloy, PVC, acrylic, engineering plastics. The combination is selected for each configuration. Marine anti-corrosion paint with a piano-gloss automotive paint finish. Applied to painted parts.
- Typical power · powered versions
- Standard products: 100–500 W; oversized installations: 1,000–5,000 W. Typical ranges for powered versions. Confirm the selected model and final connected load.
- Product maintenance
- Inspect removable pieces, moving parts, fasteners and the visitor controls before use. Follow the supplied operating sequence and scheduled maintenance every 30 days.
- Installation & training
- Complimentary training is available on site or remotely, according to project needs. If installation or on-site after-sales service is not included in the product price, the customer pays the actual travel expenses incurred, unless the contract provides otherwise.
- Factory acceptance & handover
- Mid-production and pre-dispatch checks are provided. Factory acceptance can take place in person at the factory or through acceptance videos. Installation and operating videos, written installation and operating instructions, drawings and a spare-parts list are provided.
- Complimentary parts
- 24 months of complimentary spare-parts support, starting when the exhibit is handed over for use. Covers faults not caused by the user. User-caused or deliberate damage is excluded. Exhibit Engineers pays the shipping cost of complimentary spare parts during the 24-month support period.
- Warranty & repair labour
- The whole-exhibit warranty period and repair labour scope and charges are agreed in the contract.
Can we discuss a prototype or sample for a custom version?
Yes. Prototype testing and sample fabrication are available for custom projects. Discuss which functions or features you need to review for your version. The scope, cost and schedule are agreed for the project.
How prototype testing & samples workWhat can we discuss for our setting?
Share the learning theme, visitor group, room plan and preferred interaction. Confirm the appearance, dimensions, controls and interpretation for the version you need.
What should we confirm before ordering?
Review the final configuration, operating instructions, power and installation needs, maintenance access and supply responsibilities with the project team.
CONTINUE EXPLORING
Related products.
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Turn an area-comparison display and relate the region under a cycloid arch to its generating circle.
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FROM CONCEPT TO TURNKEY DELIVERY
Start with a reference. Shape your version.
Share the exhibit name, intended users and a plan or description of your setting. We can work through the experience and practical scope.