Rick F Guyon - Stopping Distance - Richard F Guyon

Rick F Guyon - Stopping distance includes the distance traveled before the brakes are applied as well as the distance during the breaking manuever. The breaking perception reaction time is also referred to as the PIEV time, using an acronym for perception, identification, emotion, and volition. PIEV time varies widely from person to person. Though the median value is approximately 0.90 sec for unexpected events, individuals with slow reaction times may require up to 2.7 seconds. 2.5 seconds is the value used by AASHTO for determining the minimum stopping sight distances, the value that is appropriate for approximately 90% for the population.

Rick F Guyon - Richard F Guyon - Light Pollution

It's sad that for many people around the world they will not be able to look at the night sky and see the stars like our ancestors did. It wasn't just one or two dots. They could see the bands of our galaxy. They could see other galaxies and other planets. How come we don't have that same view?

Light Pollution - For those of you that live in the city...the lights coming from the streetlights, homes, apartments you name it creates a halo almost that doesn't allow us to see the stars visibly. See in the city it never really is dark. When you look at a city hub from the outskirts of town you can see that glow in the sky..well the glow also prevents you from seeing the beauty of space and what we have so much yet to learn.