When passing through a Lock an amber light means approchthe lock under full controll
I think I know this but I just can't remember
Green
Amber
amberWhen passing through a lock, an amber light means “approach the lock under full control."
Amber
Amber
amber
amber
Amber
Amber
Amber
Amber
The condenser adjusts the amount of light passing through the specimen.
You can split white light into a spectrum of its component wavelengths by passing it through a prism, not a prison.
Transmission