State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing, 100085, China College of ...

While other countries have embraced digital displays and infrared-based systems, American air traffic controllers are trained to use paper strips, floppy disks and World War II-era radar technology.

While other countries have embraced digital displays and infrared-based systems, American air traffic controllers are trained to use paper strips, floppy disks and World War II-era radar technology.

While other countries have embraced digital displays and infrared-based systems, American air traffic controllers are trained to use paper strips, floppy disks and World War II-era radar technology.