Wrangell Sentinel -

By Dan Rudy 

Unmanned aircraft taking off


Dan Rudy/ Wrangell Sentinel

Robert Johnson demonstrates his unmanned aircraft system for a class at the Nolan Center on Saturday during 2015 Bearfest.

In fits and kicks, with each passing year technological innovations continue to change the way people live, work, recreate and perceive the world.

Many of these changes can go unnoticed by the average consumer, like a slightly longer-lasting battery or the stapleless tea bag. Other technologies that have today become virtually indispensable only a few decades ago were conceivable only in the realm of science fiction.

Smartphones are one such example, transforming the way Americans communicate by uniting the telephone with the computer processor, the camera, and most anything one can program...

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