![Red light + green light = yellow light. Here's how it happens in the eye — and how to teach it. | by Elissa Levy | Age of Awareness | Medium Red light + green light = yellow light. Here's how it happens in the eye — and how to teach it. | by Elissa Levy | Age of Awareness | Medium](https://miro.medium.com/max/330/1*o1eYmQ543ypOId3F3wYOOg.jpeg)
Red light + green light = yellow light. Here's how it happens in the eye — and how to teach it. | by Elissa Levy | Age of Awareness | Medium
![Some Chicago red light camera intersections have shorter green lights, rack up millions in fines - ABC7 Chicago Some Chicago red light camera intersections have shorter green lights, rack up millions in fines - ABC7 Chicago](https://cdn.abcotvs.com/dip/images/5706360_111819-wls-iteam-redlight-cam-10p-vid.jpg?w=800&r=16%3A9)
Some Chicago red light camera intersections have shorter green lights, rack up millions in fines - ABC7 Chicago
![AC85 265V Wateproof design high quality 200mm PC housing red green traffic light for sale|green traffic light|red green traffic lightstraffic light - AliExpress AC85 265V Wateproof design high quality 200mm PC housing red green traffic light for sale|green traffic light|red green traffic lightstraffic light - AliExpress](https://ae01.alicdn.com/kf/HTB1yQf1RXXXXXcEaXXXq6xXFXXXc/AC85-265V-Wateproof-design-high-quality-200mm-PC-housing-red-green-traffic-light-for-sale.jpg)
AC85 265V Wateproof design high quality 200mm PC housing red green traffic light for sale|green traffic light|red green traffic lightstraffic light - AliExpress
![200mm red green traffic signal light horizontal or vertical installation PC shell LED traffic light for sale| | - AliExpress 200mm red green traffic signal light horizontal or vertical installation PC shell LED traffic light for sale| | - AliExpress](https://ae01.alicdn.com/kf/HTB1cP_eSFXXXXbsXXXXq6xXFXXXS/200mm-red-green-traffic-signal-light-horizontal-or-vertical-installation-PC-shell-LED-traffic-light-for.jpg)
200mm red green traffic signal light horizontal or vertical installation PC shell LED traffic light for sale| | - AliExpress
![Vertical Traffic Light For Pedestrians With Green And Red Human Figures Isolated On White Background. Sign For Crossing Road On. City Traffic Concept Royalty Free Cliparts, Vectors, And Stock Illustration. Image 124288334. Vertical Traffic Light For Pedestrians With Green And Red Human Figures Isolated On White Background. Sign For Crossing Road On. City Traffic Concept Royalty Free Cliparts, Vectors, And Stock Illustration. Image 124288334.](https://previews.123rf.com/images/greenpicstudio/greenpicstudio1903/greenpicstudio190300447/124288334-sem%C3%A1foro-vertical-para-peatones-con-figuras-humanas-verdes-y-rojas-aisladas-sobre-fondo-blanco-firma.jpg)