In the past several decades, militaries have worked hard to develop technologies that simultaneously protect infantry soldiers' hearing and aid in battlefield communication. However, these advanced Tactical Communication and Protective Systems, or TCAPS—earmuffs or earplugs with built-in microphones allowing active hearing protection—don't help if a soldier takes them off to assess the location of incoming gunfire.
from General Physics News - Science News, Physics News, Physics, Material Sciences, Science http://bit.ly/2YnT4zh
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