Like many apartments in SF, Juliana’s one-bedroom is a Victorian-style home, so she leaned into tradition and gave each room ...

Look closely at a rainbow, and you’ll spot red, orange, yellow, green, blue, and violet, but not purple. That’s because every color in a rainbow corresponds to a single wavelength of light.

The human eye does not actually see purple ... by a wavelength of light, and the strength of the signal from each cone (and type of cone). The brain then determines what color you are looking ...