Rubies in a watch — Watchmakers · The Makers
Tilly opens an old watch marked 17 jewels and finds tiny red stones inside. Her helper Ravi wrote notes about them. Some notes are not right.
Your task
Tap the lines that are a problem.
- Inside a mechanical watch some tiny axles spin thousands of times an hour. They turn in holes drilled in synthetic ruby, which is extremely hard and smooth, so it wears away very slowly and rubs very little. Rubies grown in a laboratory since about 1900 made good watches cheap enough for everyone.
- Invented guild stories to learn from. Never try fire, hot metal, glass, blades or power tools on your own: crafts like these are learned with a trained adult.
- Every craft came from many people in many places. Nothing about you is collected.
Score
- Craft knowledge — You understood how this craft works.
- Making it well — You put the steps in a sensible order and used the right tools.
- Care for people & planet — You kept people safe and used materials wisely.
In real life
Many watches from the 1900s still run today because their ruby bearings hardly wear. Repairing and servicing a mechanical watch instead of throwing it away keeps metal, stones and work out of the rubbish.
Watchmakers
The guild stories are invented, to learn from. Fire, heat, blades and tools are only for trained adults: learn these crafts with a trained adult, never at home. Nothing about you is collected; progress stays on this device.
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