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- Wed Sep 22, 2004 3:22 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: My Guess
- Replies: 1
- Views: 4168
My Guess
I have seen this many times! Most recently I have noticed it at an intersection in Spokane, WA after a crew had placed down some striping for a crosswalk. The stripes were not painted, but were a type of decal placed on the road. The halo is caused by tiny beads used to ‘sandblast’ the area to ensur...