Up goes the barrier
Explorers (Foundation), mission E3 Strong & Steady, lesson 4 of 6.
Hook
The car park gate is too heavy to lift! How do real gates go up so easily?
Fair test
Lift the gate with and without the counterweight. Which is easier?
Bonus challenge
Make a “ticket” and only open the gate for cars that have one.
The build
- 🚧 Parking Barrier Gate: A long striped barrier that lifts with a tiny turn — thanks to a heavy counterweight. (level 2 of 5, about 20 minutes, 9 steps)