Learning + Tutorials

Wildfires are naturally occurring or man made events which can appear suddenly and do horrific damage to huge areas within hours. Anyone who has lived in California the last couple of years knows first-hand what I'm talking about.

If you live in an area where wildfires can occur you must be prepared ahead of time, because when they hit you would have to leave in a moments notice.

Back in the late 1980s, an oral surgeon was in the middle of a two-week raft trip down the Colorado River in the Grand Canyon in Arizona, when disaster struck.

He and two other men were on the bank, getting their 18-foot (5.4-meter) raft ready for a trip down the Crystal Rapids when it got caught in a wave, filled with water and ripped the line from their hands.

As you probably know you can use radio waves to talk to people over the air. But did you know you could also send digital signals as well?