When I took an astronomy class in college, we'd have "night" class on the roof, with telescopes, and star maps.
We were instructed to bring flashlights, but cover the lens with a red layer, to keep the pupils from closing too much, so we could both look at stars but read our star charts.
The headlights in the other lane don't disqualify the benefits of using red lighting inside the car.
We were instructed to bring flashlights, but cover the lens with a red layer, to keep the pupils from closing too much, so we could both look at stars but read our star charts.
The headlights in the other lane don't disqualify the benefits of using red lighting inside the car.