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This
web-site is concerned with everyday things, and some of the simpler mechanisms which underly
them. It is not intended as a text-book, being constructed in a rather
different way. Some of the
possible relationships between the subjects are explicitly stated: others are
not.
The
material world is unimaginably complex, and that’s just the part that is
known. But you can go a long way using the rule – "Everything is
simpler than you think." This is possible because many aspects of the
world can be described by simple rules. Don’t be put off something you want to do or
want to know by the thought that it’s only for "experts".
But if you go
deeply into any subject you will probably find eventually that "Everything
is more complex than you thought." This happens because even simple
rules can lead to complex behaviour, and because actually making something work,
economically and safely, is not easy. And it happens because the
implementation of an idea can require a complicated set of systems. Look
at a diagram of a gas-turbine jet engine, a rocket engine, or an internal
combustion engine, in an encyclopedia, and then
compare it with a photograph or a cut-away diagram of the real thing.
If
anything here is useful for your homework, or any other non-profit educational or private
use, please feel free to download it. Questions are welcomed, and
will answered wherever possible.
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