It is fascinating looking back and realising how safe practice has evolved over the years. More often than not it is a case of parallel development. People dealing with similar problems in different parts of the world often came up with the same solutions.
A good example are the signals used by river runners. When I […]
Tidbits
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Whistling with fingers should perhaps be on the primary school curriculum (not a class I would want to lead). It’s not a replacement for carrying a storm whistle, but well practiced, can be extremely useful. For a concise written instruction see Nat Wilson on How to Whistle Loudly.
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JPG images of the photos, diagrams and illustrations from the book are available to download for use in your presentations. Download images
