epaselect USA RADIO QUIET ZONE

epaselect USA RADIO QUIET ZONE

epaselect epa04049359 A photograph made available on 31 January 2014 shows the Robert C. Byrd Green Bank Telescope, the largest steerable radio telescope in the world, before dawn in Green Bank, West Virginia, USA, 30 January 2014. To protect the observatory from radio interference, the Federal Communications Commission designated 13,000 miles (20,921 km) surrounding the facility as a National Radio Quiet Zone, where wireless communications such as radio, cell phone, and wi-fi are severely restricted. EPA/JIM LO SCALZO

☞ < 'AI 차단'…밀양 양계농가 살처분 현장 > ☞ < 저스틴비버 음주운전·마약·폭행…'트러블 메이커' > ☞ 여수 앞바다서 기름유출 해경 방제(종합) ☞ -PGA- 양용은, 피닉스오픈 1R 공동선두(종합) ☞ 정부 "독도 ICJ 제소 시도, 무의미한 짓"…아베 비난 ▶연합뉴스앱

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