4 ms·

I experienced this as a pedestrian in downtown Chicago (on iOS in my case). It made me curious about what was going on — were the buildings reflecting the signa

by 333c 5y ago

I experienced this as a pedestrian in downtown Chicago (on iOS in my case). It made me curious about what was going on — were the buildings reflecting the signal or obscuring it somehow? It's a fascinating phenomenon.

skzv 5y ago
That's exactly what's happening! Please see my other comment (along with the contained blog link)