Transcript
Ryan Hippensteel (0:10)
I always tell people to kind of picture their cell phone and, like, navigating somewhere you've never been.
Hana Rosen (0:14)
This is Ryan.
Ryan Hippensteel (0:16)
My name is Ryan Hippensteel, and he's.
Hana Rosen (0:18)
Explaining to me how the work that he and his colleagues do helps a person like me, who has no sense of direction, get around, or I should probably say he and his former colleagues.
Ryan Hippensteel (0:29)
First your cell phone is using GPS technology, and then you have all these layers, right? It might be a layer of restaurants so you can, you know, find a new pizza joint. All of those layers need to be on top of each other in the right place for your car and your iPhone or whatever it might be to know what road it's on.
Hana Rosen (0:48)
The Earth is not a perfect sphere. It turns out that it's constantly shifting in subtle ways.
Ryan Hippensteel (0:55)
You have subsidence, you have uplift, you have the gravity field underneath the earth changing. You have oscillating poles. So we're all very blessed with modern technology that can navigate us around an extremely complex environment that's changing, not realizing that the work's never done because the Earth truly is changing.
Hana Rosen (1:14)
Hippensteel's work was keeping up with all this complexity so that the maps would remain precise. It's a field called geodesy.
Ryan Hippensteel (1:21)
Geodesy is kind of the size and shape of the Earth, right? It's the sciences behind the size and shape of the Earth and what changes the Earth is undergoing at all times.
Hana Rosen (1:29)
Hippensteel did this work for the federal government.
Ryan Hippensteel (1:32)
I was the field operations branch chief for the National Geodetic Survey before I.
Hana Rosen (1:38)
Talked to HIBP and steel. I was not aware that my getting around depended on the work of the National Geodetic Survey. So do other way, more critical things, like precision farming, disaster relief, ships, knowing how deep or shallow the shoreline is in real time. Even Hippensteel says weapons firing accurately. The work that he and his colleagues did was invisible but critical. It kept the ground under my feet stable. I'm Hana Rosen. This is Radio Atlantic. And this week, one year since Donald Trump was reinaugurated. We're talking about the federal government workforce. That was.
