Some handy estimation tricks.

These will come in handy on the trail. Be patient…Pythagoras: This astonishing Pre-Socratic was a brilliant mind. I guess everyone knows his ‘Theorem” about right angle triangles. The saying below might not be quite so well known (or his enjoiner, … Continued

Naismith’s Rule

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Naismith’s Rule ‘Is a rule of thumb that helps in the planning of a walking or hiking expedition by calculating how long it will take to walk the route, including the extra time taken when walking uphill. It was devised … Continued

How Long Till Sundown?

Here is another neat trick. If you hold your hand out at arm’s length, the width of your fingers approximates to 15 minutes. You can use this to judge how long it is till sundown (and remember you have approx … Continued