Some simple ones are described here. Pages under construction. Water is common, yet strange. Here are some reasons why. Page under construction.
Snakes are fascinating and elegant animals - read about their lives in Britain.
No British snakes are aggressive to people. Cotswold Wildlife Page Index and Site Plan Simulations of engineering principles and physical principles. This web-site is concerned with everyday things, and the simpler mechanisms which underly them. It is not intended as a text-book, being constructed in a rather different way. The material world is unimaginably complex, and that's just the part that is known.