Gizmo Garage
Chapter 14, Smart Circuits
Twin Button
Two pads that switch its power on only while both are held down at once.
How it works
- It has two pads. Its colour's power is on only while both pads are held down together, and goes off when either is let go.
- Each pad works like a small scale, so it needs enough weight and a moment to react.
- A crate, a domino, an ice cube or a steel ball is enough. A tennis ball or a basketball is too light.
- A ball that just rolls across both pads quickly does not switch it.
Tips
- Hold each pad with something that stays put, not something that rolls across.
- Pads are a fixed distance apart, so plan how to put weight on both.
Where you'll meet it
You first meet it in level 132, Double Act, in chapter 14, Smart Circuits.
Crate
Bowling Ball
Steel Ball
Bucket
Inverting Relay