Skis

device · 6000 BC · Stone Age

Runners for travelling over snow.

What it is made of

• Ski base — has part. The underside.
• Ski tip — has part. A bent end.
• Ski bindings — has part. The boot binding.

Principles and materials it uses

• Friction — uses. Gliding over snow.
• Wood — is made of. The oldest skis are wooden.

History: what it evolved from and what it influenced

• Snowboard — evolved into. Riding down snow.

Things built in a similar way

• Snowshoes — works like. Two ways of not sinking into snow.

Take Skis apart

Open Evothings