In addition to being a member of the British peerage, Edward, Marquis of Worcester, who died on April 3, 1667, was a bit of a dabbler, a sort of ersatz inventor, and author of an odd little book witn the catchy title A Century of the names and scantlings of such inventions as at present I can call to mind to have tried and perfected. The book, written some ten years earlier, describes, as the title suggests, a hundred speculative projects, none of them, however, detailed enough to allow a reader to actually put them into practice: secret writing with peculiar inks, explosive devices that would sink any ship, ships that would resist any explosive devices, floating gardens, a method to prevent sands from shifting, automatic assault pistols and cannons, a timer for lighting candles at any time during the night, a hundred-foot pocket ladder, flying machines.
Although many of his ideas foreshadowed later inventions, it is unclear whether he had thought through the methods by which they would work. One idea was put to work with success although unusually so. As the owner of Raglan Castle, he had constructed some hydraulic engines and wheels for bringing water from the moat to the top of the castle tower. During the Civil War, Roundheads (supporters of Oliver Cromwell with bad haircuts) had approached the castle with not the best of intentions. The Marquis had his waterworks put into play. “There was such a roaring,” he later wrote, “that the unwelcome visitors stood transfixed, not knowing what to make of it.” On cue, one of the Marquis’ men came running toward them shouting that the lions were loose. The intruders tumbled over one another down the stairs in an effort to escape, never looking back until the castle was out sight.
Edward suggested that when he died, a model of his engine should be buried with him: “I call this a Semi Omnipotent Engine, and do intend that a model thereof be buried with me.”[
Fast Forward Four Hundred Years
And another ersatz inventor with a bad haircut. Dean Kamen was mostly a master of hype. Among his contributions to society are an all-terrain electric wheelchair and a device that uses compressed air to launch SWAT teams to the roofs of tall buildings in a single bound. Interestingly enough, Kamen’s father was an illustrator for Mad and Weird Science.
The most famous of his inventions by far was a closely guarded secret that he claimed would change the world when made public. Unveiled in 2001 to major drumrolls, the Segway is an electric, self-balancing human transporter. It landed pretty much with a thud. Adding insult, Time Magazine included the Segway at the top of its list of the 50 worst inventions.
British entrepreneur Jimi Heseleden begged to differ. He bought the Segway company in 2010. Unfortunately, he died that same year when he fell off a cliff while riding his Segway.
Listen Up Roundheads
The aforementioned Time list of the worst inventions included such sure-fire ideas as Hair in a Can (you spray it on, guys), Tanning Beds, Smell-o-Vision, Hula Chair and Venetian-Blind Sunglasses. The Almanac has visited some of these in the past and will visit others in the future.
Wretched Richard's Almanac 
I loved Raglan Castle when I visited there many years ago.
No lions, though.