Proof challenge

Build a Cardboard Lever

Make a simple lever from a ruler and a pencil and test how moving the pivot changes the effort. Post a photo link or write-up.

How it works

1. Join the challenge.
2. Do the work, then post a public https link or a short write-up as proof.
3. An entry completes when it's approved or reaches 5 votes from other players. You earn +250 XP and the Finisher badge.

Sponsors

• EeCorp.comTurning great domains into working companies
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Sponsors support the arena. They don't affect scoring, reviews or who finishes. Put your brand on this challenge.

Entries