№ 9 · you build it
Let the smoke out
Join the battery straight to the little resistor and watch it burn.
- 1Tap the battery, then the 100 Ω resistor.
- 2Tap them both again — that closes the loop.
- 3Watch the resistor. It only takes a blink.
What to look for: The block goes dark and stops working. This is what the fat blocks in every other build are for: without one, the battery pushes far too hard.