When did SciTech Now Season 2 Episode 21 air?
SciTech Now Season 2 Episode 21 aired on February 24, 2016.
Capturing the latest breakthroughs in science, technology and innovation. With anchor Hari Sreenivasan, we check out the hottest gadgets, meet the innovators creating the startups of tomorrow and map out the mysteries of the scientific world.

In this episode, a high tech submarine allows for better underwater exploration; an average nose can sense 1,200 flavors; mysterious stains on St. Louis’ Gateway Arch prompt a tricky testing procedure; and the U.S. military is turning to microgrids to keep its power reliable and secure.
Direct answers for episode-level questions and details.
SciTech Now Season 2 Episode 21 aired on February 24, 2016.
Runtime information for this episode is not available yet.
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