Developed by Goodyear in the 1950s, the Inflatoplane could fit in the trunk of a car, and then be inflated to full size in 10 minutes. The idea was that the air force could drop inflatoplanes to pilots stranded in enemy territory, allowing them to fly themselves to safety. But the project was eventually abandoned because of a series of accidents, and the military's concern that the plane could too easily be shot down. Link: bendbulletin.com
Westerners traveling to Korea in the late nineteenth century were puzzled by this shovel, which they frequently saw in use on Korean farms. It required between three to nine people to operate, but it seemed to shovel dirt no faster or better than a western-style, one-person shovel.
However, the westerners may have been mistaken about the lack of efficiency of the Korean shovel. An article in Esquire (June 21, 2010) by John Richardson offers this piece of info:
When I was a teenager in Korea, the lesson was called Three Men on a Shovel. Koreans used to dig trenches using one guy steering the shovel with the handle and two other guys pulling with ropes tied to the shovel. How Americans would laugh! Dumb Koreans, takes three of them just to dig a hole! Then the Army did a test with three Americans with three shovels against the Koreans, and the Koreans kicked our asses.
In the mid-1950s, Hiller constructed a series of innovative Flying Platforms for an Army-Navy program as a one-man flying vehicle that the pilot could control with minimal training. The pilot simply leaned in the desired direction and the platform would follow. The platforms, which utilized the aerodynamic advantages of the ducted fan, were incapable of tumbling, because if the pilot leaned over too far, the platform would pitch up and slow down.
Unfortunately, the flying platform was plagued by engineering problems. Otherwise, we'd probably all be floating around cities in these today. More info here
Dr. Gordon Volkenant seems like he was quite the character. In 1947, he invented a gadget he called the "husband detector." It was basically a motion detector, designed to help wives catch their husbands who were trying to sneak unheard into the house after a late night at the bar. When it sensed someone coming through the door, it set off a loud siren. link: Pittsburgh Press
Volkenant promptly became the first husband to be caught by his own device, when it rang the alarm as he tried to sneak into his house at 3 a.m. link: Washington Reporter
And based on the look of him, I'm guessing he wasn't just at the bar until 3 a.m. Here he is in 1948 demonstrating another of his gadgets, which he called an "electronic humidistat." He claimed it could detect hosiery defects in nylon stockings when he waved it up and down a woman's leg. It looks a lot like a regular lightbulb to me. I'm sure he found it necessary to test on many women.
Paul Di Filippo
Paul has been paid to put weird ideas into fictional form for over thirty years, in his career as a noted science fiction writer. He has recently begun blogging on many curious topics with three fellow writers at The Inferior 4+1.