One of the Monty Python's most popular sketches,
The Minstry of Silly Walks, featured John Cleese acting as a government official whose department specialised in... well... silly walks (do a Youtube search to see the ridiculous style of movement). And then I just came across
this news article entitled "Maths explains why 'silly walks' are silly" published about half a year ago.
The news article suggested that a recent paper in the Royal Society (a reputable scientific journal) has shown, through mathematics, that the "silly walk" style of walking is, surprise!, not efficient. In fact, in the lead of the article this was written:
SCIENTISTS have explained mathematically why the famous "silly walks" of Monty Python's John Cleese have never caught on in the long history of Homo sapiens.
The first thought that came to my mind was the utter duh-ness in the entire issue. It takes no brains to figure out that "silly walk" hinders mobility and any creature that evolved silly walks would be brutally murdered by natural selection.
I was curious enough to search for the supposed article, and guess what? There is no reference whatsoever to the Monty Python sketch. The article, entitled "
Idealized walking and running gaits minimize work", studies two forms of human movement and evaluates their efficiency. In fact, the abstract is as follows:
Even though human legs allow a wide repertoire of movements, when people travel by foot they mostly use one of two locomotor patterns, namely, walking and running. The selection of these two gaits from the plethora of options might be because walking and running require less metabolic energy than other more unusual gaits. We addressed this possibility previously using numerical optimization of a minimal mathematical model of a biped. We had found that, for a given step-length, the two classical descriptions of walking and running, 'inverted pendulum walking' and 'impulsive running', do indeed minimize the amount of positive work required at low and high speeds respectively. Here, for the case of small step-lengths, we establish the previous results analytically. First, we simplify the two-dimensional particle trajectory problem to a one-dimensional 'elevator' problem. Then we use elementary geometric arguments on the resulting phase plane to show optimality of the two gaits: walking at low speeds and running at high speeds.
So it hardly needs to be said that silly walk was added into the news article to grab attention, in the process of which the original research article was made to look rather silly in itself.