7 tech inventions we can’t believe people actually lived without

From GPS to microwaves to vacuums, we sure are glad someone had the ingenuity (and time) to think up these handy items.

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GPS app Waze was developed in Israel and snatched up by Google. GPS app Waze was developed in Israel and snatched up by Google. (Photo: dennizn / Shutterstock.com)

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GPS

Where on Earth are you? Before GPS, it was a lot harder to figure that out. Albert Einstein's work with the theory of relativity first showed that time and space is relative. Roger Easton, a scientist at the Naval Research Laboratory, followed up on that notion. And thanks to Easton, the global positioning system (GPS) went from an experimental satellite tracking project to a universal find-me-anywhere tool. And with apps like the Israel-based Waze, it's now a ubiquitous facet of daily life.

(P.S. We know you still get lost sometimes. But thanks to GPS, you usually find your way back without having to tell anyone.)

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