Long before email, it was predicted that traditional letters would be dropped off using the ever-advancing technology of the Space Age.
All you need is a projector and a willing prisoner.
Never worry about distractions again.
This one was actually a real button, too.
We're a long way from being able to predict temblors, but what if we had even a few moments of warning before the shaking started?
The vision of post-war air travel isn't all that different from what well-heeled fliers can get today, but what a long, strange trip it's been.
One mine in 1919 South Africa had a foolproof way to see whether its miners were smuggling out raw diamonds: it gave them a radiation-laden scan at the end of every shift.
Steam-powered cars may sound like a shout-out to the early 1900s, but in 1970s California the idea was building up a real head of, umm, steam.
The traffic safety department is trying to get the nation used to today's silent cars. Something similar happened at the beginning of the 20th century.
How a salt-of-the-Earth Midwest manufacturer learned to butter up customers and see its sales explode.
Bunny needles, puppy spoons, squirrel otoscopes. Here are some great, well-meaning ways to make children fear doctors AND cute fuzzy animals.
Ride-sharing took off in Los Angeles at the beginning of the 20th century, but it couldn't beat City Hall.
Before viewing the retail experience became the province of TVs and tablets, if you wanted to see possible presents dancing around you had to head to the windows of downtown department stores.
Before silent movies evolved into talkies, various efforts to create the aural ambiance depicted onscreen included this roomful of noise-making contraptions.
How the gleaming white fridge changed our relationship to food.
The origin of the soundbite can be traced to the 1924 U.S. presidential election, the first one ever covered heavily by a broadcast medium, radio.