Week 20 - Hint: Same Wavelength (Puzzle 2 of 4 in this series)
When you look at the wavelengths, what do you notice they have in common? What shapes do you see? What are the differences between them? And finally, what do you think they might represent?
The answers to these questions could give you the hints you need to solve this problem, match the wavelengths, and boot up the system!