hobby #211

Curling

Learning to deliver a 20-kilogram granite rock down a sheet of pebbled ice, reading the curl, controlling weight, and sweeping to steer it into the house. Part precision sport, part on-ice strategy — famously called chess on ice — with a surprising amount of friction physics hiding under the pebble.

Six Falls Chasing a Rock That Curls the Wrong Way

Curling

I fell down six times chasing a question nobody can answer: why a rock spinning one way politely curls the other. Turns out the physicists don't know either.

code-a-day tied to this hobby

Sweeping a Rock You Can No Longer Touch Bang-bang control

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