The Science of Airport Security

The video explains the science behind airport security, detailing how X-ray scanners detect objects in bags based on density and how personal scanners like backscatter X-ray and millimeter wave scanners work. It also covers the process of detecting explosives using swabs and ETD machines. The video aims to demystify the security process, highlighting the low radiation exposure and the technology's focus on safety.

Describe the difference between backscatter X-ray scanners and millimeter wave scanners.

What happens if security finds something suspicious in your bag?