Description

An accordion with 7 sections, one for each EM wave type. Radio waves: longest λ (1m-km), used for TV, radio, WiFi, Bluetooth. Microwaves: λ ≈ mm-cm, used for cooking (water absorption), radar, 5G. Infrared: λ ≈ μm-mm, heat radiation, remote controls, thermal cameras, fiber optics. Visible: λ = 400-7

Details