Provide at least three examples of real-world applications in use or in development with reliable references.

Answer 1

global positioning systemhttp://www.safewise.com/blog/10-wearable-safety-gps-devices-kids/
( of course I use GPS to get around the bleak ocean but that is old stuff:)

sampling whale snot with drone http://shop.whale.org/pages/snotbot

tidal power generation systems
http://connectusfund.org/14-main-advantages-and-disadvantages-of-tidal-energy