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Physical Challenge: Matchsticks And Glue

Take your virtual design into the real world—build with actual matchsticks and discover what simulation can't teach you about craftsmanship

Part of Build A Bridge That Holds 100 Coins

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Last updated Oct 29, 2025. Clone to remix or explore the blocks below.

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content

From Pixels to Physical

Educational content slides

From Pixels to Physical

You've designed virtually—now it's time to build for real.

The Challenge:

Span: 30cm between two supports
Goal: Hold 100 coins (or equivalent weight)
Materials: ~50 matchsticks + wood glue
Time: 1-2 hours (plus drying time)

What you'll learn:

Theory vs. reality (simulation predicts, reality teaches)
Craftsmanship matters (precision assembly is a skill)
Failure analysis (understand why things break)
Iteration mindset (version 2 is always better)

This is where engineering becomes tangible.

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quiz

Quiz: 3 Questions

Test your understanding with this quiz.

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Your physical bridge fails at 70 coins but your simulation predicted 100 coins. What's the most likely primary cause?

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feedback

Document Your Physical Build and Analysis

Complete this exercise and get AI-powered feedback.

Document Your Physical Build and Analysis

This is where theory meets reality. Your documentation of failures and learnings is as valuable as success.

Be honest and specific: What worked? What didn't? What surprised you? What would you do differently?

Document your build: What design did you choose? How many matchsticks did you use? How many coins did it hold? What was the main challenge you encountered during construction? *

Analyze your bridge's failure: Did a joint break, beam buckle, or beam snap? What does this specific failure mode tell you about the forces and design? What would you change in version 2? *

Compare your physical results to simulation predictions. If there was a significant difference, what real-world factors did the simulation not account for? What would you tell someone else planning their build?