Archive | January 28, 2009 | Armed with Science

Podcast #2: Hydrographic Surveys and the Fleet Survey Teams

Filed under Earth Sciences, Physical Sciences, Podcast, Technology by John Ohab on January 28, 2009 at 1:14 pm {one comment}

Michael Jeffries is a hydrographer for the Navy and the Technical Director of the Fleet Survey Team. On this Armed with Science podcast, he discusses the techniques and tools of ocean bottom mapping; the use of expeditionary Fleet Survey Teams; and how the data they collect is used to build precise nautical navigation charts.

Listen to the interview!

Read transcript(pdf)

Podcast #1 Atomic Time and the Master Clock of the Naval Observatory

Filed under Earth Sciences, Physical Sciences, Podcast by John Ohab on January 14, 2009 at 1:17 pm {one comment}

Geoff Chester discusses the U.S. Naval Observatory’s Master Clock, one of the most precise clocks in the world. Mr. Chester will also discuss the nature of atomic time keeping; why a precise time reference is critical to military operations; and how the next-generation Master Clock will work.

Listen to the interview!

Read transcript(pdf)