#semaphoresignalling
Text
Al Jazeera - A brief history of the traffic light and why we need a new colour:
TrafficSignal #TrafficLight #TrafficSafety #Throughput #Efficiency #ParliamentSquare #London #WilliamPott #Detroit #GasLight #GarrettMorgan #ElectricLight #SemaphoreSignalling #Semaphore #History #TransportationEngineering #Engineering #Transportation
#trafficsignal#trafficlight#trafficsafety#throughput#efficiency#parliamentsquare#london#williampott#detroit#gaslight#garrettmorgan#electriclight#semaphoresignalling#semaphore#history#transportationengineering#engineering#transportation
0 notes
Last Seen Blogs
gayshinx
i’m a luxray few can afford
holy-hannah-fruit-pie
HOLY HANNAH! A FRUIT PIE!
rabiosantologia
☪ris.
murderermallow-blog
Yaoi Trash
firoz857
Untitled