Inventing GPS, , North Star Editions, Kristi Lew,Technology/Machinery & Tools,JUVENILE NONFICTION, global positioning system; technologies that changed the world; historic innovations in engineering and science; how machines work; computers and electronic devices; maps and navigation; satellite signals; tracking vehicles and objects; geocaching; breakthroughs in transportation; educational nonfiction for ages 8-10,, Amazing Inventions, United States, en-UShttps://northstareditions.comglobal positioning system; technologies that changed the world; historic innovations in engineering and science; how machines work; computers and electronic devices; maps and navigation; satellite signals; tracking vehicles and objects; geocaching; breakthroughs in transportation; educational nonfiction for ages 8-10, [BLURB],[CITY],,books, ebooks, biblet, Book2look