Tag Archives: falling

The mystery of the bicycle

When a bike and rider are zipping merrily along, the mystery is that they seem to stay upright with relative ease, but common sense surely tells us that if nothing tangible is holding the bike and rider up — it must be quite possible that they could fall down? That makes sense now, doesn’t it?

In the process of learning to ride a bike, intangible matters such as faith and belief arise, as well as stability and balance in a metaphorical sense.

C. S. Lewis (1944) wrote in Perelandra, page 68, “There is no reason why a man on a smooth road should lose his balance on a bicycle; but he could.”

Our point is that there is a certain mystery about a bike. It seems to be so stable remaining upright, and yet common sense, if we actually examine matters, tells us that nothing visible seems to be holding the bike up. If nothing visible is holding the bike up, then it seems obvious that it might fall — unless we start to believe in the power of the invisible.

What Keeps a Moving Bicycle Upright

Other variations on the same question can be phrased as

•How Does a Bicycle Work?

•What scientific principles keep bikes upright?

•Why is it so easy to ride a bike once you have learned?

•Is there an invisible wall, as hinted by C. S. Lewis in Prelandra, (1944, p. 68) that prevents a bike from falling over?
The answers to these and varied questions can be either short or long. In China tourists are told a joke that a bike falls over “Because it is two-tired.”
A friend who is a retired professor of physics, University of Illinois, quipped that a bike works,
“Because you pedal it.”

These are some of the short versions. A somewhat longer version is provided by visiting the various sub-headings in this “Bicycle Science” section.

As a guide to this section, please be advised that it was written almost like a manuscript. Unless you are going for a specific result, our suggestion is that you start with “Intro” (introduction), and then move on down the line of sub-heading tabs from left to right.

The focus on this “Bicycle Science” section will be to present the almost three decades of bicycle related research (1983 to present) performed by Dr. Richard Klein at the University of Illinois in Urbana-Champaign.