The tech that the US Post Office gave us
When you crack open your mailbox, it's almost as if your letters just appear. Long before the days of speedy, overnight mail deliveries, postal service workers meticulously sorted through letters by hand and transported mail on horseback. For more than 250 years, the US Postal Service has worked behind the scenes to build a faster delivery network, and this mission has quietly pushed it to the forefront of technology.
"Most people treat the Postal Service like a black box," USPS spokesperson Jim McKean tells The Verge. "You take your letter, you put it in a mailbox, and then it shows up somewhere in a couple of days. The truth is that that …