The joke among geocachers is that our hobby uses multi-million dollar satellites to find tupperware in the woods. And it’s true! Launching a single satellite into space can cost anywhere between ten to four hundred million US Dollars. It’s common knowledge that we have access to this technology thanks to US President Bill Clinton, who famously “flipped the switch” on selective availability.
Twenty years later, most of us take GPS in our phones, our cars, or our computers for granted. So how do satellites, the cornerstone of our favorite game, actually work to help us find those tupperware?
Let’s find out!
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