The oscillating fan
Inventors (Intermediate), mission I8 Motors & Circuits, lesson 2 of 6.
Hook
How does a fan look left and right while it spins?
Fair test
Measure the swing angle with a protractor. Change a link length and measure again.
Bonus challenge
Cool a paper ice cream. Does it “melt” on one side only?
The build
- 🌬️ Oscillating Fan: A desk fan that turns its head left and right all by itself! (level 3 of 5, about 40 minutes, 18 steps)