Ever wondered why traffic lights are red, yellow, and green? Dive into the surprising history, science, and psychology behind this colorful choice! From old-school London to modern tech, we break it all down in a way that's fun and easy to follow. Hit subscribe for more cool engineering stories, and drop a comment telling us your favorite traffic light fact! #engineering #science #history #technology #funfacts
👉 This channel was created in collaboration with https://www.youtube.com/@engenhariadetalhada
0:00 - Introduction to Traffic Light Colors
0:42 - Origins in Railways and Early Traffic Lights
1:48 - Addition of Yellow and Universal Meaning
2:51 - Physics and Visibility of Colors
3:50 - Accessibility and Color Blindness Solutions
5:10 - International Standardization of Traffic Signals
6:07 - The Science and Evolution Behind the System
Comments