The use of the word "air" to describe radio transmissions is quite common such as "on the air" or "over the airwaves". Saying "converting ambient radiation int

The use of the word "air" to describe radio transmissions is quite common such as "on the air" or "over the airwaves". Saying "converting ambient radiation into usable electricity" is more accurate, though the average person might suggest sending these to Fukushima.