What If You Could See WiFi?
Wifi routers affixed to buildings, lamp posts and other object create a circular data field around them. These antenna have an omnidirectional signal that extends equally in all directions, shown as the circular bands. Wifi broadcasts at a frequency between radio and microwaves, meaning that the waves or pulses are about six inches apart, as shown by the colored, circular bands. The illustrations were produced with the help of M. Browning Vogel. She has a Ph.D. in Astrobiology, worked at NASA Ames for five years, and now teaches science at the University level.