The USA really is a unique place, and our treatment of bicycles is no
exception.      Yet in some parts of the world, to some people, a
bicycle is about as unnecessary as a plow.    And that may be selling
it short.

This is from "Energy and Equity", by Ivan Illich:

"Man, unaided by any tool, gets around quite efficiently. He carries
one gram of his weight over a kilometer in ten minutes by expending
0.75 calories. Man on his feet is thermodynamically more efficient
than any motorized vehicle and most animals. For his weight, he
performs more work in locomotion than rats or oxen, less than horses
or sturgeon. At this rate of efficiency man settled the world and made
its history.

Man on a bicycle can go three or four times faster than the
pedestrian, but uses five times less energy in the process. He carries
one gram of his weight over a kilometer of flat road at an expense of
only 0.15 calories. The bicycle is the perfect transducer to match
man's metabolic energy to the impedance of locomotion. Equipped with
this tool, man outstrips the efficiency of not only all machines but
all other animals as well.

The invention of the ball-bearing... created an option between more
freedom in equity and more speed.    The bearing is an equally
fundamental ingredient of two new types of locomotion, respectively
symbolized by the bicycle and the car.   The bicycle lifted man's
automobility to a new order, beyond which progress is theoretically
not possible.

"Bicycles are not only thermodynamically efficient, they are also
cheap. With his much lower salary, the Chinese acquires his durable
bicycle in a fraction of the working hours an American devotes to the
purchase of his obsolescent car. The cost of public utilities needed
to facilitate bicycle traffic versus the price of an infrastructure
tailored to high speeds is proportionately even less than the price
differential of the vehicles used in the two systems. In the bicycle
system, engineered roads are necessary only at certain points of dense
traffic, and people who live far from the surfaced path are not
thereby automatically isolated as they would be if they depended on
cars or trains. The bicycle has extended man's radius without shunting
him onto roads he cannot walk. Where he cannot ride his bike, he can
usually push it.

The bicycle also uses little space. Eighteen bikes can be parked in
the place of one car, thirty of them can move along in the space
devoured by a single automobile. It takes three lanes of a given size
to move 40,000 people across a bridge in one hour by using automated
trains, four to move them on buses, twelve to move them in their cars,
and only two lanes for them to pedal across on bicycles. Of all these
vehicles, only the bicycle really allows people to go from door to
door without walking. The cyclist can reach new destinations of his
choice without his tool creating new locations from which he is
barred. "

Now if you'll excuse me, I have some errands to run.    *hops on pogo-
stick and bounces over horizon*

Matt

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