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    Release Day
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    Meet Reeborg!
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    sk8board Time!
    
    Mesmerizing Hex Fidget
    
    Spinning Top Battle
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    Tilt Sensor
- Engineering
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    Expired Patent Project
    
    Assemblies and Joints
    
    Design for 3D Printing
    
    Mechanical Movement Project
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    Bridge Design Challenge Rules
    
    Bridge Challenge: Identify the Problem

Bell Work 007

Question

How many tennis balls can fit on a school bus?

Note

A well-known Fermi estimation question from Google and consulting interviews.

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