Did you solve it? Do you have the brain of an engineer?
Summary
The article shares four engineering puzzles along with their solutions, illustrating practical engineering challenges and innovations. It explains how simple design choices solve problems in cranberry sorting, medicine bottle safety, bridge construction, and airplane testing.Key Facts
- Good cranberries bounce while bad ones do not; sorting uses a tilted board to separate them.
- Medicine bottle caps are designed to be child-resistant to 85 percent of children under five, balancing safety and ease of use for elderly people.
- The Golden Gate Bridge handrail was changed from thick horizontal supports to thin vertical slats to reduce wind resistance, but this increased wind levels for cyclists and caused loud whistling sounds.
- Early jet planes suffered crashes due to cabin pressure; engineers used a water tank to safely test the plane’s structure under pressure without causing destructive explosions.
- The water tank test involved submerging the plane and filling the cabin with water to increase pressure.
- These puzzles are adapted from the book "How to Keep a Plane in the Sky" by Alex Davies.
- The author regularly publishes engineering puzzles every two weeks.
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