The story of vehicles with insufficient wheels.
Pictured above, what is possibly the first monowheel.
This elegant monowheel cycle- the word "bicycle" seems somehow inappropriate, though there are certainly two wheels involved- dates back to 1869. It was built by Rousseau of Marseilles.
"In 1869 the craftsman Rousseau of Marseilles built this monocycle, which perches the cyclist on the inside of a 2 1/2 yards-high wheel. As there is no steering mechanism, it makes uncommon demands on the rider's sense of balance." (from Galbiati & Ciravegna)
Presumably the bigger outer wheel made bumps in the road easier to negotiate; compare the popular penny-farthing or "ordinary" bicycle. What it does not have is the gearing-up given by the large wheel of a penny-farthing.Note the solid rim- this is before pneumatic tyres were introduced. There is no gearing and no steering. There is a brake, operated by twisting the handlebar forward. This pulls a strap that causes the curved lever to press against the rim of the inner wheel.
|Leonardo Da Vinci's Notebook Digitized and Available Online|
|List of Problems Solved by MacGyver|
|One Terabyte of Kilobyte Age: Screenshots of old Geocities Websites|
|Some Might Call It Irony|
|Menopause: an Evolutionary Result of Mens Sexual Preferences|
|100 Things We Can Do Today to Stop Global Warming in the Next 30 Years|
|“They don’t drive like people. They drive like robots.”|
|“Creating a shift from medical device to positive body image statement.”|
|“Parti.Vote is designed to make the US's representative government system more equitable.”|
|How to Avoid Jury Duty|
|“If the facial data and related personal information is stolen and put on the internet, it will cause big problems.”|
|CaptchaTweet: Write Tweets in Captcha Form|
|"The scientific reality of artificial intelligence."|
|"Hours after the fires in Santa Rosa I filmed this postal worker still delivering the mail."|
|Making a Movie Inside a Video Game|
|Google Map Shows You the Most Photographed Areas of the World|
|"Here is Home Depot's tape measure tutorial in all its glory."|